Stats - the Is this prime? game

This page is updated at most once per minute. It was last updated at 2026-01-17T13:31:39+00:00.

You can download a dump of every attempt at the game in tab-separated values format: dump-2025-11-24.zip (17MB)

All-time stats

8124758 attempts

Reason for ending	Frequency
composite	4821309	59%
prime	3040004	37%
time	262014	3%

Final number	Reason for ending	Frequency
87	composite	942877	11.6%
51	composite	383981	4.73%
57	composite	380767	4.69%
39	composite	250978	3.09%
1	composite	248965	3.06%
63	composite	202643	2.49%
49	composite	199137	2.45%
69	composite	186328	2.29%
5	prime	185776	2.29%
9	composite	174519	2.15%
27	composite	174465	2.15%
59	prime	169758	2.09%
79	prime	161838	1.99%
67	prime	155360	1.91%
29	prime	152085	1.87%
47	prime	148301	1.83%
21	composite	146170	1.8%
61	prime	145198	1.79%
53	prime	143680	1.77%
77	composite	142395	1.75%

100 most recent attempts

Time finished	Time taken	Sequence	Final number	Reason for ending	Difficulty	Time allowed
2026-01-17 13:24:28	50.792	11,37,75,23,15,21,57,25,89,41,45,87,71,17,81,101,97	79	prime	1.02	60
2026-01-17 13:23:36	6.049	67,13,43,71,69	37	prime	1.02	60
2026-01-17 13:23:30	5.303	19,63,25,81,85	57	composite	1.02	60
2026-01-17 13:23:24	2.094	3	53	prime	1.02	60
2026-01-17 13:23:19	17.131	59,39,43,79,75,45,71,1,73	91	composite	1.02	60
2026-01-17 13:23:01	1.476		63	composite	1.02	60
2026-01-17 13:22:59	11.262	71,25,33,21,9,23,27,79	69	composite	1.02	60
2026-01-17 13:22:47	2.372	61	57	composite	1.02	60
2026-01-17 13:22:43	7.761	33,13,63,11,3	69	composite	1.02	60
2026-01-17 13:22:35	1.123		57	composite	1.02	60
2026-01-17 13:22:33	2.224	27	71	prime	1.02	60
2026-01-17 13:22:31	2.112		51	composite	1.02	60
2026-01-17 13:22:28	4.578	67,75	47	prime	1.02	60
2026-01-17 13:22:07	35.095	79,29,47,1,83,61,33,37,25,77,81,21,63,19,7	87	composite	1.02	60
2026-01-17 13:21:30	10.098	45,47,7,21,27,23,53	5	prime	1.02	60
2026-01-17 13:21:17	1.373		43	prime	1.02	60
2026-01-17 13:21:13	5.831	13,65,49,81,15	87	composite	1.02	60
2026-01-17 13:21:04	3.163	63	69	composite	1.02	60
2026-01-17 13:20:55	21.041	15,63,25,7,67,53,39,77,79,55	19	prime	1.02	60
2026-01-17 12:16:00	45.56	73,79,49,59,25,67,35,83,51,45,23,81,91,53,69,57,71,77,109,9,19,15,111,105,63,41,123,3,135,17,137,85,151,29,99,7	161	composite	1.02	60
2026-01-17 12:15:13	1.991		55	composite	1.02	60
2026-01-17 12:15:11	5.976	5,75,43,55,33	89	prime	1.02	60
2026-01-17 12:15:04	4.175	71,23,7,85	5	prime	1.02	60
2026-01-17 12:14:58	13.592	35,17,67,27,85,23,81,21,75,41,59,9	87	composite	1.02	60
2026-01-17 12:14:43	0.984		71	prime	1.02	60
2026-01-17 12:14:40	25.119	77,53,59,57,65,63,17,33,91,49,37,55,79,3,105,75,35,97,5,115	89	prime	1.02	60
2026-01-17 12:14:14	14.336	39,9,47,75,51,85,1,59,33,61,83,49	5	prime	1.02	60
2026-01-17 11:59:30	40.856	29,79,59,7,11,63,65,33,45,61,35,57,15,93,47,49,97,91,77,109,87,99,13,117,115,21	133	composite	1.02	60
2026-01-17 11:53:21	25.132	15,43,29,49	79	prime	1.02	60
2026-01-17 11:52:55	1.734		71	prime	1.02	60
2026-01-17 11:52:50	4.718	25,47	77	composite	1.02	60
2026-01-17 11:35:28	5.784	5,45	33	composite	1.02	60
2026-01-17 10:51:32	57.345	29,33,49,47,67,71,23,83,19,65,37,73,41,39,21,101,57,109,5,11,1,43,13,97,91,31,105,99,15,137,61,93,103,117,75,121,81,165,17,35,141,171,127,173,133,111,193,85,163,155,149,79,119,207,223,69,131,123,197,51,233,177,147,87,113,129,287,301,237,281,203,261,327,77,271,221,185	323	composite	1.02	60
2026-01-17 09:29:41	30.208	71,81,47,27,73,43,9,23,53,75,83,67,41,37,17,7,95,93,39,13,5,49,111,21,33,77,31,115,99,35,117	119	composite	1.02	60
2026-01-17 08:06:36	3.76	7,69,43	23	prime	1.02	60
2026-01-17 08:06:30	3.455	53,39	29	prime	1.02	60
2026-01-17 08:06:25	6.008	45,19	57	composite	1.02	60
2026-01-17 08:06:18	15.055	63,43,1,15,23,69,51,17,3,21,97	61	prime	1.02	60
2026-01-17 08:06:02	2.24	47	43	prime	1.02	60
2026-01-17 08:05:13	9.505	29,43,21,11,35,49,45	61	prime	1.02	60
2026-01-17 08:05:01	6.024	17,25,63,53	19	prime	1.02	60
2026-01-17 08:04:54	10.697	35,37,65,73,39,47	79	prime	1.02	60
2026-01-17 08:04:41	6.808	43,21,45,27	49	composite	1.02	60
2026-01-17 08:04:31	10.664	9,3,55,23,75,5	1	composite	1.02	60
2026-01-17 06:27:08	60.333		61	time	1.02	60
2026-01-17 06:26:06	1.954	19,71,73,37,17	21	composite	1.02	60
2026-01-17 06:26:03	0.726	43,23	25	composite	1.02	60
2026-01-17 06:26:03	0.511		33	composite	1.02	60
2026-01-17 06:26:02	1.866	79,23	69	composite	1.02	60
2026-01-17 06:25:43	16.616	59,37,71,15,83,49,43,35	57	composite	1.02	60
2026-01-17 06:25:23	17.193	67,79,83	49	composite	1.02	60
2026-01-17 06:25:05	5.269	35,21	81	composite	1.02	60
2026-01-17 06:24:59	10.192	59,5,7,31	43	prime	1.02	60
2026-01-17 06:24:43	13.25	15,17,5,19,69	1	composite	1.02	60
2026-01-17 03:18:28	14.851	13,5,23,9,25,31,21,79,11	81	composite	1.02	60
2026-01-17 03:17:47	35.303	59,49,37,53,73,89,15,51,25,1,77	91	composite	1.02	60
2026-01-17 03:16:58	12.13	47,21,25,9	51	composite	1.02	60
2026-01-17 03:16:43	23.466	71,43,33,21,69,61,29,67,45,37,95,77,3	93	composite	1.02	60
2026-01-17 03:16:15	36.807	27,67,65,85	63	composite	1.02	60
2026-01-17 03:15:37	9.728	73,19,11,77,15,71,27	63	composite	1.02	60
2026-01-17 03:15:19	53.891	3,45,53,63,13,69,65,29,37,9,31,57,67,5,23,11,25,39,55,61,107,35,79,47,59,101,19,131,83,27,21,95,97	147	composite	1.02	60
2026-01-17 03:14:25	0.163		51	composite	1.02	60
2026-01-17 03:14:24	3.246	23,37	9	composite	1.02	60
2026-01-17 03:14:15	6.806	19,23,41,77,3	87	composite	1.02	60
2026-01-17 03:12:06	0.991	55	25	composite	1.02	60
2026-01-17 03:12:05	3.286	39,27,81,21,31	57	composite	1.02	60
2026-01-17 03:12:01	8.489	3,55,11,51,35,79,71,29,91,5,21,13,17,87,77,59	43	prime	1.02	60
2026-01-17 03:11:52	4.789	29,71,39,49,61,17,47,31	89	prime	1.02	60
2026-01-17 03:11:46	0.372		39	composite	1.02	60
2026-01-17 03:11:46	0.457		7	prime	1.02	60
2026-01-17 03:11:45	0.474		31	prime	1.02	60
2026-01-17 03:11:44	0.445		9	composite	1.02	60
2026-01-17 03:11:43	7.837	9,59,79,5,11,1,7,69,27,31,65,51,39,95,97	93	composite	1.02	60
2026-01-17 03:11:34	0.444		3	prime	1.02	60
2026-01-17 03:11:33	0.499		51	composite	1.02	60
2026-01-17 03:11:32	6.21	61,7,83,27,47,71,87,67,17,13,41	91	composite	1.02	60
2026-01-17 03:11:26	13.666	19,29,25,41,69,21,73,3,79,63,5,35,87,71,57,37,59,27,23,109,49,31,17,97,55	119	composite	1.02	60
2026-01-17 03:11:11	2.386	69,3,59	55	composite	1.02	60
2026-01-17 03:11:08	15.509	49,79,43,71,59,33,77,57,53,69,21,15,5,83,75,67,27,51,39,11,97,99,29,93,63,115,91,31	61	prime	1.02	60
2026-01-17 03:10:52	7.441	49,47,67,77,63,3,83,87,85,21,75,17,57,27	11	prime	1.02	60
2026-01-17 03:10:44	0.927	79	21	composite	1.02	60
2026-01-17 03:10:43	6.516	63,73,27,43,69,11,89,91,15,79,29	97	prime	1.02	60
2026-01-17 03:10:35	9.459	47,69,57,43,75,45,27,7,83,29,79,87,101,97,59,35,23	67	prime	1.02	60
2026-01-17 03:10:25	2.371	43,23,49	71	prime	1.02	60
2026-01-17 03:10:23	34.905	1,33,27,79,47,85,35,23,75,83,9,71,37,31,11,81,87,59,69,93,103,63,95,109,13,3,61,89,135,141,107,45,17,153,137,111,113,131,121,169,57,15,101,117,73,5,161,119,133,209,201,21,67,173,145,157,19,239,185,43,181,265,253	211	prime	1.02	60
2026-01-17 03:09:47	0.461		21	composite	1.02	60
2026-01-17 03:09:46	9.985	37,69,45,71,81,59,13,67,61,23,41,63,9,35,5,103,11,17	107	prime	1.02	60
2026-01-17 03:09:34	46.059	71,69,23,37,35,1,19,47,73,31,57,53,101,79,63,95,59,85,83,65,103,45,67,111,11,99,81,5,17,117,135,51,97,145,9,141,133,39,155,15,171,131,55,185,153,151,197,191,87,89,179,43,213,105,189,27,203,123,33,249,207,109,49,227,7,75,21,267,289,273,143,221,285,235,165,127,241,355,193,161,229	237	composite	1.02	60
2026-01-17 03:05:44	16	41,65,47,27,49,57,55	91	composite	1.02	60
2026-01-17 03:05:28	2.174	13	25	composite	1.02	60
2026-01-17 03:05:08	35.194	77,9,65,59,37,53,83,79,63,23,21,67,17,27,43,13,45	111	composite	1.02	60
2026-01-17 03:04:30	15.529	19,69,41,29,71	87	composite	1.02	60
2026-01-17 03:04:00	19.704	79,37,25,21,73,69,67,83,53	87	composite	1.02	60
2026-01-17 03:03:38	5.101	17,39,73,25	63	composite	1.02	60
2026-01-17 03:03:15	2.377	5	51	composite	1.02	60
2026-01-17 03:02:11	21.367	19,9,35,73,21,17,27,79,43,69,71,11,55,47,99	87	composite	1.02	60
2026-01-17 03:01:38	13.965	47,19,57,21,55,85,27,43,17,5	91	composite	1.02	60
2026-01-17 03:01:23	1.202		63	composite	1.02	60
2026-01-17 03:01:21	4.506	23,27,15	45	composite	1.02	60
2026-01-17 03:01:08	7.128	19,57,21,31	51	composite	1.02	60

Time finished

Time taken

Sequence

Final number

Reason for ending

Difficulty

Max. number

Time allowed

2026-01-17 13:24:28

50.792

11,37,75,23,15,21,57,25,89,41,45,87,71,17,81,101,97

prime

1.02

2026-01-17 13:23:36

6.049

67,13,43,71,69

prime

1.02

2026-01-17 13:23:30

5.303

19,63,25,81,85

composite

1.02

2026-01-17 13:23:24

2.094

prime

1.02

2026-01-17 13:23:19

17.131

59,39,43,79,75,45,71,1,73

composite

1.02

2026-01-17 13:23:01

1.476

composite

1.02

2026-01-17 13:22:59

11.262

71,25,33,21,9,23,27,79

composite

1.02

2026-01-17 13:22:47

2.372

composite

1.02

2026-01-17 13:22:43

7.761

33,13,63,11,3

composite

1.02

2026-01-17 13:22:35

1.123

composite

1.02

2026-01-17 13:22:33

2.224

prime

1.02

2026-01-17 13:22:31

2.112

composite

1.02

2026-01-17 13:22:28

4.578

67,75

prime

1.02

2026-01-17 13:22:07

35.095

79,29,47,1,83,61,33,37,25,77,81,21,63,19,7

composite

1.02

2026-01-17 13:21:30

10.098

45,47,7,21,27,23,53

prime

1.02

2026-01-17 13:21:17

1.373

prime

1.02

2026-01-17 13:21:13

5.831

13,65,49,81,15

composite

1.02

2026-01-17 13:21:04

3.163

composite

1.02

2026-01-17 13:20:55

21.041

15,63,25,7,67,53,39,77,79,55

prime

1.02

2026-01-17 12:16:00

45.56

73,79,49,59,25,67,35,83,51,45,23,81,91,53,69,57,71,77,109,9,19,15,111,105,63,41,123,3,135,17,137,85,151,29,99,7

161

composite

1.02

2026-01-17 12:15:13

1.991

composite

1.02

2026-01-17 12:15:11

5.976

5,75,43,55,33

prime

1.02

2026-01-17 12:15:04

4.175

71,23,7,85

prime

1.02

2026-01-17 12:14:58

13.592

35,17,67,27,85,23,81,21,75,41,59,9

composite

1.02

2026-01-17 12:14:43

0.984

prime

1.02

2026-01-17 12:14:40

25.119

77,53,59,57,65,63,17,33,91,49,37,55,79,3,105,75,35,97,5,115

prime

1.02

2026-01-17 12:14:14

14.336

39,9,47,75,51,85,1,59,33,61,83,49

prime

1.02

2026-01-17 11:59:30

40.856

29,79,59,7,11,63,65,33,45,61,35,57,15,93,47,49,97,91,77,109,87,99,13,117,115,21

133

composite

1.02

2026-01-17 11:53:21

25.132

15,43,29,49

prime

1.02

2026-01-17 11:52:55

1.734

prime

1.02

2026-01-17 11:52:50

4.718

25,47

composite

1.02

2026-01-17 11:35:28

5.784

5,45

composite

1.02

2026-01-17 10:51:32

57.345

29,33,49,47,67,71,23,83,19,65,37,73,41,39,21,101,57,109,5,11,1,43,13,97,91,31,105,99,15,137,61,93,103,117,75,121,81,165,17,35,141,171,127,173,133,111,193,85,163,155,149,79,119,207,223,69,131,123,197,51,233,177,147,87,113,129,287,301,237,281,203,261,327,77,271,221,185

323

composite

1.02

2026-01-17 09:29:41

30.208

71,81,47,27,73,43,9,23,53,75,83,67,41,37,17,7,95,93,39,13,5,49,111,21,33,77,31,115,99,35,117

119

composite

1.02

2026-01-17 08:06:36

3.76

7,69,43

prime

1.02

2026-01-17 08:06:30

3.455

53,39

prime

1.02

2026-01-17 08:06:25

6.008

45,19

composite

1.02

2026-01-17 08:06:18

15.055

63,43,1,15,23,69,51,17,3,21,97

prime

1.02

2026-01-17 08:06:02

2.24

prime

1.02

2026-01-17 08:05:13

9.505

29,43,21,11,35,49,45

prime

1.02

2026-01-17 08:05:01

6.024

17,25,63,53

prime

1.02

2026-01-17 08:04:54

10.697

35,37,65,73,39,47

prime

1.02

2026-01-17 08:04:41

6.808

43,21,45,27

composite

1.02

2026-01-17 08:04:31

10.664

9,3,55,23,75,5

composite

1.02

2026-01-17 06:27:08

60.333

time

1.02

2026-01-17 06:26:06

1.954

19,71,73,37,17

composite

1.02

2026-01-17 06:26:03

0.726

43,23

composite

1.02

2026-01-17 06:26:03

0.511

composite

1.02

2026-01-17 06:26:02

1.866

79,23

composite

1.02

2026-01-17 06:25:43

16.616

59,37,71,15,83,49,43,35

composite

1.02

2026-01-17 06:25:23

17.193

67,79,83

composite

1.02

2026-01-17 06:25:05

5.269

35,21

composite

1.02

2026-01-17 06:24:59

10.192

59,5,7,31

prime

1.02

2026-01-17 06:24:43

13.25

15,17,5,19,69

composite

1.02

2026-01-17 03:18:28

14.851

13,5,23,9,25,31,21,79,11

composite

1.02

2026-01-17 03:17:47

35.303

59,49,37,53,73,89,15,51,25,1,77

composite

1.02

2026-01-17 03:16:58

12.13

47,21,25,9

composite

1.02

2026-01-17 03:16:43

23.466

71,43,33,21,69,61,29,67,45,37,95,77,3

composite

1.02

2026-01-17 03:16:15

36.807

27,67,65,85

composite

1.02

2026-01-17 03:15:37

9.728

73,19,11,77,15,71,27

composite

1.02

2026-01-17 03:15:19

53.891

3,45,53,63,13,69,65,29,37,9,31,57,67,5,23,11,25,39,55,61,107,35,79,47,59,101,19,131,83,27,21,95,97

147

composite

1.02

2026-01-17 03:14:25

0.163

composite

1.02

2026-01-17 03:14:24

3.246

23,37

composite

1.02

2026-01-17 03:14:15

6.806

19,23,41,77,3

composite

1.02

2026-01-17 03:12:06

0.991

composite

1.02

2026-01-17 03:12:05

3.286

39,27,81,21,31

composite

1.02

2026-01-17 03:12:01

8.489

3,55,11,51,35,79,71,29,91,5,21,13,17,87,77,59

prime

1.02

2026-01-17 03:11:52

4.789

29,71,39,49,61,17,47,31

prime

1.02

2026-01-17 03:11:46

0.372

composite

1.02

2026-01-17 03:11:46

0.457

prime

1.02

2026-01-17 03:11:45

0.474

prime

1.02

2026-01-17 03:11:44

0.445

composite

1.02

2026-01-17 03:11:43

7.837

9,59,79,5,11,1,7,69,27,31,65,51,39,95,97

composite

1.02

2026-01-17 03:11:34

0.444

prime

1.02

2026-01-17 03:11:33

0.499

composite

1.02

2026-01-17 03:11:32

6.21

61,7,83,27,47,71,87,67,17,13,41

composite

1.02

2026-01-17 03:11:26

13.666

19,29,25,41,69,21,73,3,79,63,5,35,87,71,57,37,59,27,23,109,49,31,17,97,55

119

composite

1.02

2026-01-17 03:11:11

2.386

69,3,59

composite

1.02

2026-01-17 03:11:08

15.509

49,79,43,71,59,33,77,57,53,69,21,15,5,83,75,67,27,51,39,11,97,99,29,93,63,115,91,31

prime

1.02

2026-01-17 03:10:52

7.441

49,47,67,77,63,3,83,87,85,21,75,17,57,27

prime

1.02

2026-01-17 03:10:44

0.927

composite

1.02

2026-01-17 03:10:43

6.516

63,73,27,43,69,11,89,91,15,79,29

prime

1.02

2026-01-17 03:10:35

9.459

47,69,57,43,75,45,27,7,83,29,79,87,101,97,59,35,23

prime

1.02

2026-01-17 03:10:25

2.371

43,23,49

prime

1.02

2026-01-17 03:10:23

34.905

1,33,27,79,47,85,35,23,75,83,9,71,37,31,11,81,87,59,69,93,103,63,95,109,13,3,61,89,135,141,107,45,17,153,137,111,113,131,121,169,57,15,101,117,73,5,161,119,133,209,201,21,67,173,145,157,19,239,185,43,181,265,253

211

prime

1.02

2026-01-17 03:09:47

0.461

composite

1.02

2026-01-17 03:09:46

9.985

37,69,45,71,81,59,13,67,61,23,41,63,9,35,5,103,11,17

107

prime

1.02

2026-01-17 03:09:34

46.059

71,69,23,37,35,1,19,47,73,31,57,53,101,79,63,95,59,85,83,65,103,45,67,111,11,99,81,5,17,117,135,51,97,145,9,141,133,39,155,15,171,131,55,185,153,151,197,191,87,89,179,43,213,105,189,27,203,123,33,249,207,109,49,227,7,75,21,267,289,273,143,221,285,235,165,127,241,355,193,161,229

237

composite

1.02

2026-01-17 03:05:44

41,65,47,27,49,57,55

composite

1.02

2026-01-17 03:05:28

2.174

composite

1.02

2026-01-17 03:05:08

35.194

77,9,65,59,37,53,83,79,63,23,21,67,17,27,43,13,45

111

composite

1.02

2026-01-17 03:04:30

15.529

19,69,41,29,71

composite

1.02

2026-01-17 03:04:00

19.704

79,37,25,21,73,69,67,83,53

composite

1.02

2026-01-17 03:03:38

5.101

17,39,73,25

composite

1.02

2026-01-17 03:03:15

2.377

composite

1.02

2026-01-17 03:02:11

21.367

19,9,35,73,21,17,27,79,43,69,71,11,55,47,99

composite

1.02

2026-01-17 03:01:38

13.965

47,19,57,21,55,85,27,43,17,5

composite

1.02

2026-01-17 03:01:23

1.202

composite

1.02

2026-01-17 03:01:21

4.506

23,27,15

composite

1.02

2026-01-17 03:01:08

7.128

19,57,21,31

composite

1.02

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