Stats for the "Is this prime?" game

This page is updated at most once per minute. It was last updated at .

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

8036787 attempts

Reason for ending Frequency
composite477247659%
prime300332137%
time2595593%
Final number Reason for ending Frequency
87composite94127011.71%
51composite3794044.72%
57composite3761504.68%
39composite2478173.08%
1composite2465933.07%
63composite2000432.49%
49composite1966522.45%
5prime1836832.29%
69composite1836722.29%
9composite1724522.15%
27composite1721402.14%
59prime1676452.09%
79prime1598561.99%
67prime1539401.92%
29prime1500591.87%
47prime1464441.82%
21composite1442251.79%
61prime1435081.79%
53prime1419811.77%
77composite1406521.75%

100 most recent attempts

Time finished Time taken Sequence Final number Reason for ending Difficulty Max. number Time allowed
2025-12-05 05:11:220.52263composite1.02060
2025-12-05 05:11:218.12523,33,35,83,47,9,65,59,17,55,93,39,97,101,3785composite1.02060
2025-12-05 05:11:139.53427,69,21,83,39,13,89,77,11,87,9,19,51,93,91,103,7,10537prime1.02060
2025-12-05 05:11:031.54573,219composite1.02060
2025-12-05 05:11:005.5159,39,5,13,27,73,45,15,41,31composite1.02060
2025-12-05 05:10:541.98111,25,2317prime1.02060
2025-12-05 05:10:517.84729,15,79,53,49,87,75,17,91,35,77,41,55,61,151composite1.02060
2025-12-05 05:10:433.5041,23,35,57,61,2141prime1.02060
2025-12-05 05:10:380.9984915composite1.02060
2025-12-05 05:10:3712.0191,13,47,67,43,9,19,51,25,55,73,41,75,35,15,3,69,45,111,59,77,81,21,49,83109prime1.02060
2025-12-05 05:10:2412.44949,35,23,71,61,5,65,3,89,33,27,67,43,9,25,79,37,107,75,51,83,55,85,4757composite1.02060
2025-12-05 05:10:111.49435,5515composite1.02060
2025-12-05 05:10:092.59819,3,75,1381composite1.02060
2025-12-05 05:10:066.63855,25,19,5,23,1,79,73,81,57,43,3717prime1.02060
2025-12-05 05:09:5818.3871,49,25,17,9,53,33,7,59,79,97,81,83,5,61,91,73,41,63,45,3,47,75,109,111,101,105,135,11,113,103,129,67,39,29147composite1.02060
2025-12-05 05:09:390.51963composite1.02060
2025-12-05 05:09:376.00235,17,43,53,67,3,47,85,29,15,6587composite1.02060
2025-12-05 05:09:304.84353,15,59,3,85,63,11,65,2539composite1.02060
2025-12-05 05:09:241.93543,67,2737prime1.02060
2025-12-05 05:09:213.0929,39,21,75,7119prime1.02060
2025-12-05 05:09:162.72933,41,15,31,1121composite1.02060
2025-12-05 05:09:1314.52443,7,45,75,41,23,29,73,77,55,33,9,39,53,63,19,59,97,37,103,31,115,107,93,5,129,35,31composite1.02060
2025-12-05 05:08:580.964519composite1.02060
2025-12-05 05:08:560.4299composite1.02060
2025-12-05 05:08:551.97339,13,8161prime1.02060
2025-12-05 05:08:5218.53559,23,55,43,3,65,21,5,51,77,67,99,37,95,41,63,39,47,69,91,33,87,79,17,123,129,19,49,73,85,11,7,14957composite1.02060
2025-12-05 05:08:331.4821,7929prime1.02060
2025-12-05 05:08:310.93353prime1.02060
2025-12-05 05:08:301.47251,2367prime1.02060
2025-12-05 05:08:271.0121321composite1.02060
2025-12-05 05:08:2427.08917,21,81,39,51,75,31,47,83,15,19,25,37,23,93,99,41,13,35,55,101,7,29,11,59,63,3,87,9,139,115,125,127,149,71,143,129,105,159,169,43,61,173,155,189,185,165151prime1.02060
2025-12-05 05:07:563.36475,3,55,13,251composite1.02060
2025-12-05 05:07:522.4645,65,35,4721composite1.02060
2025-12-05 05:07:4910.229,3,45,53,43,29,41,89,93,11,73,21,97,85,67,57,61,1113prime1.02060
2025-12-05 05:07:3811.51731,45,25,59,79,9,55,3,61,35,39,63,65,5,17,57,37,81,51,71,8793composite1.02060
2025-12-05 05:07:264.6711,27,47,49,9,59,63,7553prime1.02060
2025-12-05 05:07:212.23639,25,8327composite1.02060
2025-12-05 05:07:182.21663,71,4735composite1.02060
2025-12-05 05:07:150.50233composite1.02060
2025-12-05 05:07:143.38911,19,29,47,55,7163composite1.02060
2025-12-05 05:07:0713.06861,11,73,81,67,19,37,65,71,51,97,27,43,101,35,5,107,45,29,49,25,109,85,5769composite1.02060
2025-12-05 05:05:243.47947,3,69,923prime1.02060
2025-12-05 05:05:200.628719composite1.02060
2025-12-05 05:05:190.81943prime1.02060
2025-12-05 05:05:1711.01575,31,35,57,63,25,7,41,7381composite1.02060
2025-12-05 05:05:061.1313537prime1.02060
2025-12-05 05:05:0511.12977,73,83,79,39,23,37,25,33,75,31,11,951composite1.02060
2025-12-05 05:04:538.71933,77,37,75,51,35,21,593prime1.02060
2025-12-05 05:04:445.27415,63,29,33,1321composite1.02060
2025-12-05 05:04:382.0759,3727composite1.02060
2025-12-05 05:04:367.78265,67,3383prime1.02060
2025-12-05 05:04:2713.28945,65,73,59,13,31,23,41,47,7991composite1.02060
2025-12-05 05:04:132.646769composite1.02060
2025-12-05 05:04:105.89237,49,73,77,15,5539composite1.02060
2025-12-05 05:00:3016.3621,5,15,65,79,53,83,9,85,55,37,57,75,99,35,51,29,19,43,97,39,101,21,25,77,59,119,123,17,141117composite1.02060
2025-12-05 05:00:2034.01715,71,81,63,55,3,85,67,43,35,5,23,65,61,99,13,27,39,69,91,9,17,75,111,109,57,19,105,101,137,107,12587composite1.02060
2025-12-05 05:00:1417.82273,7,69,13,5,79,77,45,3,41,83,47,43,91,105,93,51,99,15,113,107,21,1,39,121,67,111,131,71,81,115,133,2349composite1.02060
2025-12-05 04:59:554.27973,69,81,83,67,47,17,7521composite1.02060
2025-12-05 04:59:503.029,47,17,71,251composite1.02060
2025-12-05 04:59:475.50357,41,65,75,13,55,59,63,79,4783prime1.02060
2025-12-05 04:59:451.4435539composite1.02060
2025-12-05 04:59:436.95125,51,61,79,85,553prime1.02060
2025-12-05 04:59:413.49775,31,41,85,63,1981composite1.02060
2025-12-05 04:59:370.56121composite1.02060
2025-12-05 04:59:372.59351,5339composite1.02060
2025-12-05 04:59:352.483,13,19,775composite1.02060
2025-12-05 04:59:320.4891composite1.02060
2025-12-05 04:59:311.80871,63,3383prime1.02060
2025-12-05 04:59:292.3539,11,9,175prime1.02060
2025-12-05 04:59:2528.19847,21,57,79,53,7,29,3,83,19,61,17,63,49,71,59,13,41,75,77,115,25,93,113,99,95,55,15,127,69,43,37,23,153,133,39,145,109,157,137,87,117,9,155,181,177,101,121,105151prime1.02060
2025-12-05 04:58:5612.24249,71,25,21,39,37,43,9,41,77,11,5,33,69,59,57,109,45,29,7,107,15,55,6167prime1.02060
2025-12-05 04:58:433.7737,17,35,29,77,81,1189prime1.02060
2025-12-05 04:58:398.77827,19,45,39,17,43,49,67,69,31,77,7,13,75,81,51composite1.02060
2025-12-05 04:58:303.48517,55,59,1,43,527composite1.02060
2025-12-05 04:58:257.79113,73,49,9,63,79,11,75,31,85,33,5,97,99,711composite1.02060
2025-12-05 04:58:170.954295prime1.02060
2025-12-05 04:58:156.78769,3,51,49,41,17,85,65,25,15,23,81,2771prime1.02060
2025-12-05 04:58:081.59149,6131prime1.02060
2025-12-05 04:58:063.58149,57,19,75,69,559composite1.02060
2025-12-05 04:58:011.0522569composite1.02060
2025-12-05 04:57:5837.15557,63,1,19,71,21,25,35,37,89,3,51,17,5,59,27,65,73,23,81,69,103,117,97,53,31,79,15,93,33,9,41,29,147,67,47,137,153,91,149,141,157,11,125,43,175,127,173,7,177,195,213,107,189,55,191,77,131223prime1.02060
2025-12-05 04:57:203.1587,59,17,5,7549composite1.02060
2025-12-05 04:56:320.563composite1.02060
2025-12-05 04:56:310.94295prime1.02060
2025-12-05 04:56:291.98967,15,5361prime1.02060
2025-12-05 04:56:272.34729,33,45,8319prime1.02060
2025-12-05 04:56:2410.84179,35,73,11,21,7,83,13,31,63,9,15,41,3,105,99,67,77,111,19,85113prime1.02060
2025-12-05 04:56:128.22353,21,55,11,25,35,83,91,39,45,81,75,31,79,103,6557composite1.02060
2025-12-05 04:56:040.53941prime1.02060
2025-12-05 04:56:034.18471,15,61,47,33,21,49,6783prime1.02060
2025-12-05 04:55:585.33135,23,65,55,29,79,81,49,7,9531prime1.02060
2025-12-05 04:55:528.7587,67,13,65,29,1,41,57,87,69,61,95,51,23,37,9933composite1.02060
2025-12-05 04:55:432.0473,51,1947prime1.02060
2025-12-05 04:55:4025.05873,11,69,43,13,87,21,25,71,41,23,51,9,95,55,79,39,109,103,77,27,47,31,15,37,105,127,3,93,113,83,119,147,35,1,135,5,61,123,67,75,165,141,85,9989prime1.02060
2025-12-05 04:55:148.28669,75,23,57,85,63,61,41,89,91,13,31,95,27,1129prime1.02060
2025-12-05 04:55:056.87435,13,77,23,59,1,51,25,65,45,17,87,5797prime1.02060
2025-12-05 04:54:5546.36251,7,23,31,3,17,83,53,47,57,69,5,25,9,87,13,63,101,75,107,27,115,123,37,117,95,93,81,135,113,121,91,39,11,149,15,1,55,109,71,89,137,153,171,127,43,155,119,41,197,59,103,145,183,147,161,19,187,221,255,193,167,35,143,279,125,285259composite1.02060
2025-12-05 04:54:0831.38555,17,63,13,59,79,89,3,29,67,73,91,47,103,33,9,65,71,97,19,5,35,57,41,31,75,51,45,133,129,11,145,1,125,53,139,161,155,85,37,119,113,147,131,109,135,149,127,15,151,209199prime1.02060
2025-12-05 04:53:366.76929,75,83,5,57,35,73,23,43,65,81,63,7133composite1.02060
2025-12-05 04:53:298.95319,33,69,17,21,59,77,23,35,13,45,95,3,37,73,81,4367prime1.02060