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-2026-03-08.zip (137MB)

All-time stats

8229973 attempts

Reason for ending Frequency
composite488065859%
prime308286537%
time2650193%
Final number Reason for ending Frequency
87composite94482711.48%
51composite3892194.73%
57composite3861344.69%
39composite2548783.1%
1composite2520753.06%
63composite2057632.5%
49composite2020782.46%
69composite1895742.3%
5prime1883582.29%
27composite1771902.15%
9composite1770652.15%
59prime1722022.09%
79prime1641041.99%
67prime1570081.91%
29prime1542431.87%
47prime1504691.83%
21composite1484781.8%
61prime1471751.79%
53prime1457531.77%
77composite1445561.76%

100 most recent attempts

Time finished Time taken Sequence Final number Reason for ending Difficulty Max. number Time allowed
2026-03-22 15:51:0217.7597,47,11,9,15,63,51,31,89,17,91,9779prime1.02060
2026-03-22 15:44:226.70167,65,31,27,61,143prime1.02060
2026-03-22 15:44:132.503953prime1.02060
2026-03-22 15:44:0760.163,55,11,21,15,41,37,61,85,59,65,83,39,57,9,103,13,71,43,23,101,113,89,49,81,109,35,123,27,45,129,139,135,17,97,153,121,157,5,99161time1.02060
2026-03-22 15:43:2821.0839,13,67,83,41,77,111composite1.02060
2026-03-22 15:38:0157.32677,71,69,53,85,75,49,93,109,111,103,3,97,113,105,133,73,155,61,129,145,183,89,23,179,79,9,199,209,139,159,91,243,201,191,309,215,229,255,277,279,131,149,385,65,263,321,125,27,325,45,481,347,319,281,479,161,463,545,127,775,643,797,499,117,779,535,447,173,1057,329,1109,283,437,951,1339,227,849,303,1075,1821,1763,1225,795,1331,1045,625,2121,453,369,2591,1105,507,1159,555,16351249prime1.04060
2026-03-22 15:36:2958.9433,79,85,65,13,11,59,71,33,31,51,107,127,43,61,105,5,117,27,55,153,83,167,185,131,175,217,207,75,115,257,263,135,197,191,157,39,49,243,289,253,323,281,233,341,163,439,227,461,241,391,225,193,325,159,541,213,447,181,1,259,675,29,93,223,497,485,805,1145,623,491,1167,1141,649,319,813,1485,331,927,1327,299,831,1223,277,1477,1819,2295,685,1879,1431,1023471composite1.04060
2026-03-22 15:35:2826.49657,81,63,71,5,39,61,51,85,37,23,3,79,1,27,49,41,19,133,113,115,169,67,121,83,211,25,163,69,31,125,143,201,185,239,47,149,87,271,307,7,181,225,209,319,255,9,339191prime1.04060
2026-03-22 15:34:5560.135,39,5,15,83,43,77,21,63,3,27,103,91,23,111,133,11,145,1,33,17,167,7,73,89,97,61,151,69,177,47,137,159,79,277,219,295,19,217,307,13,235,289,117,75,353,241,421,127,257,253,223,601,363,617,493,275,673,647,453,349,555,9,501,345,463,53,805,627,381,849,903,1203,637,1369,825,1441,731,1563,237,1455,1913,1581,1727,13031231time1.04060
2026-03-22 15:33:5310.58457,45,63,71,93,75,23,9,33,87,61,103,19,31,129,91,37,29,139,10997prime1.04060
2026-03-22 15:32:1757.34171,51,73,55,29,5,15,89,61,39,21,53,45,57,77,9,93,101,31,105,63,87,35,75,65,109,25,1,119,83,41,143,43,135,33,147,121,19,11,149,67,129,103,167,123,59,187,13,199,99,117,209,189,213,211,113,91,215,205,219,257,221,263,141,281,17,255,165,171,3,37,293,233,261,115,309,313,351,319,321,287,157,405,47,297,387,289,389,179,327,465,395,401,151,247,207,251,383,435,325,517,229,595,153543composite1.02060
2026-03-22 15:31:1635.00551,15,13,33,27,9,59,89,83,29,17,41,73,37,45,81,11,61,85,69,25,105,93,35,127,23,39,71,63,1,65,107,129,53,55,77,75,143,123,103,91,173,177,95,185,155,187,113,145,197,57,195,137,5,43,199,213,141,149,19,21,179,109,115,157,265,235133composite1.02060
2026-03-22 15:30:397.37829,23,43,51,57,61,81,3,87,93,5,83,31,6917prime1.02060
2026-03-22 15:30:293.69167,19,37,51,33,7339composite1.02060
2026-03-22 15:30:226.34329,59,49,25,85,53,41,35,93,39,77,839composite1.02060
2026-03-22 15:30:1515.2711,9,69,67,65,29,57,43,21,59,5,47,19,77,13,101,33,7,35,17,103,91,117,109,61,119,55,129,73,125143composite1.02060
2026-03-22 15:29:591.2875,1761prime1.02060
2026-03-22 15:29:576.45123,7,73,57,37,25,19,59,13,71,81,541prime1.02060
2026-03-22 15:29:0460.10179,73,41,11,27,21,29,3,55,65,33,89,71,95,47,13,103,23,113,49,39,93,119,85,101,117,53,57,135,137,75,59,69,67,107,115,99,81,5,61,131,155,109,169,159,35,173,139,181,193,149,153,157,209,63,1,77,177,201,125,187,215,167,197,277,121,217,281,267,243,301,171,43,233,341,333,203,297,229,189,17,289,271,255,127,141,269,361,443,9,275,407,105,307,395,199,497451time1.02060
2026-03-22 15:24:4558.25821,9,5,53,29,27,15,7,51,1,3,85,69,67,101,47,97,105,79,99,43,31,65,113,57,131,121,129,87,125,95,59,111119composite1.02060
2026-03-22 15:23:463.75835,1951composite1.02060
2026-03-22 15:23:3813.61831,5,3,45,77,85,37,1,89,5391composite1.02060
2026-03-22 15:22:110.71979prime1.02060
2026-03-22 15:22:103.4355559prime1.02060
2026-03-22 15:22:063.93529,37,1573prime1.02060
2026-03-22 15:22:012.4435519prime1.02060
2026-03-22 15:21:063.306577prime1.02060
2026-03-22 15:21:0228.31915,33,75,35,71,17,43,69,49,27,95,65,21,51,97,23,10191composite1.02060
2026-03-22 15:20:323.50141,77,355composite1.02060
2026-03-22 15:20:284.0825,4133composite1.02060
2026-03-22 15:20:232.2257581composite1.02060
2026-03-22 15:20:201.18665composite1.02060
2026-03-22 15:20:181.51623prime1.02060
2026-03-22 15:20:1119.01871,39,33,43,7,45,61,83,15,131composite1.02060
2026-03-22 15:19:380.88351composite1.02060
2026-03-22 15:19:360.97257,7779prime1.02060
2026-03-22 15:19:350.24279prime1.02060
2026-03-22 15:19:340.25829prime1.02060
2026-03-22 15:19:331.17777composite1.02060
2026-03-22 15:19:310.7495prime1.02060
2026-03-22 15:19:291.149composite1.02060
2026-03-22 15:19:251.84211prime1.02060
2026-03-22 15:19:191.81245composite1.02060
2026-03-22 15:19:151.20561prime1.02060
2026-03-22 15:19:101.7221composite1.02060
2026-03-22 15:18:074.60959prime1.02060
2026-03-22 15:17:294.77737,71,255prime1.02060
2026-03-22 15:17:241.98767prime1.02060
2026-03-22 15:17:221.02379prime1.02060
2026-03-22 15:17:0316.87473,11,43,81,37,51,77,59,75,7,2141prime1.02060
2026-03-22 15:17:034.5332523prime1.02060
2026-03-22 15:17:030.8662141prime1.02060
2026-03-22 15:17:030.26821composite1.02060
2026-03-22 15:16:5216.87473,11,43,81,37,51,77,59,75,7,2141prime1.02060
2026-03-22 15:16:318.25229,11,69,351composite1.02060
2026-03-22 14:45:1711.17167,69,49,65,53,19,1131prime1.02060
2026-03-22 14:45:051.55421composite1.02060
2026-03-22 14:45:022.9035957composite1.02060
2026-03-22 14:44:581.77927composite1.02060
2026-03-22 14:44:562.226325composite1.02060
2026-03-22 14:44:538.15263,47,6761prime1.02060
2026-03-22 14:44:433.9839,5351composite1.02060
2026-03-22 14:44:384.0835,1157composite1.02060
2026-03-22 14:44:337.91275,73,8125composite1.02060
2026-03-22 14:19:4060.00449,79,35,47,4553time1.02060
2026-03-22 14:18:382.3223,6559prime1.02060
2026-03-22 14:18:344.94561,49,11,63,5987composite1.02060
2026-03-22 14:18:2524.9771,41,13,39,3,33,73,91,17,11,47,97,15,5,57,49,63,29,35,111,10587composite1.02060
2026-03-22 14:18:0417.15361,1,71,41,79,31,69,13,37,57,55,67,29,5,17,25,39,65,59,7797prime1.02060
2026-03-22 14:18:0439.95641,25,47,77,81,1,21,63,13,51,59,69,83,73,9,19,11,91,23,109,27,79,67,85,33,45,105,17,61,39,123,137,31,15,121,125,147,107133composite1.02060
2026-03-22 14:17:2323.78225,15,51,61,11,35,19,3,17,31,83,71,67,77,29,79,95,41,101,73,59,85,87,75,5123composite1.02060
2026-03-22 14:17:194.67829,27,25,1343prime1.02060
2026-03-22 14:17:0715.53429,11,39,19,75,17,21,1,55,31,7,6543prime1.02060
2026-03-22 14:16:541.34379prime1.02060
2026-03-22 14:16:501.17531prime1.02060
2026-03-22 14:16:454.745,5349composite1.02060
2026-03-22 14:16:375.40429,5,11,21,4179prime1.02060
2026-03-22 14:16:353.25323,53,17,7945composite1.02060
2026-03-22 14:16:318.25811,17,1927composite1.02060
2026-03-22 14:16:291.89773prime1.02060
2026-03-22 14:16:271.5641351composite1.02060
2026-03-22 14:16:251.49751composite1.02060
2026-03-22 14:16:218.72743,13,71,7917prime1.02060
2026-03-22 14:16:1113.19713,39,1,3,81,63,51,23,11,29,45,8393composite1.02060
2026-03-22 14:16:091.49335composite1.02060
2026-03-22 14:15:548.90755,81,63,5779prime1.02060
2026-03-22 14:15:452.008391composite1.02060
2026-03-22 14:15:3911.9947,37,75,5,73,23,15,83,13,6957composite1.02060
2026-03-22 14:15:194.7987743prime1.02060
2026-03-22 14:15:0925.75749,31,43,47,85,33,89,9,73,81,39,99,13,1,97,51,27,103,11,59,15,109,123,121,65105composite1.02060
2026-03-22 14:15:0911.20875,37,11,25,31,15,79,59,33,45,65,89,35,27,1761prime1.02060
2026-03-22 14:14:4619.56937,13,65,29,51,79,75,33,27,31,87,9,93,39,83,67,55,101,63,49,81119composite1.02060
2026-03-22 14:14:4625.75749,31,43,47,85,33,89,9,73,81,39,99,13,1,97,51,27,103,11,59,15,109,123,121,65105composite1.02060
2026-03-22 14:14:1730.92121,75,25,63,37,35,11,33,7,85,77,51,97,10187composite1.02060
2026-03-22 14:13:4612.44175,77,19,9,333prime1.02060
2026-03-22 14:13:3024.86973,31,83,1,15,13,87,89,19,35,49,43,25,61,23,59,33,75,51,63,105,113,7,29119composite1.02060
2026-03-22 14:13:302.22921,4567prime1.02060
2026-03-22 14:13:0024.86973,31,83,1,15,13,87,89,19,35,49,43,25,61,23,59,33,75,51,63,105,113,7,29119composite1.02060
2026-03-22 14:12:4422.85637,9,15,59,85,79,29,71,33,63,81,55,39,17,43,89,87,31,7,65,97,51,77,23,105119composite1.02060
2026-03-22 14:12:431.26659prime1.02060