Stats - the Is this prime? game

This page is updated at most once per minute. It was last updated at 2026-04-12T06:00:45+00:00.

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

8246518 attempts

Reason for ending	Frequency
composite	4890026	59%
prime	3089740	37%
time	265321	3%

Final number	Reason for ending	Frequency
87	composite	945191	11.46%
51	composite	390048	4.73%
57	composite	386934	4.69%
39	composite	255493	3.1%
1	composite	252565	3.06%
63	composite	206195	2.5%
49	composite	202543	2.46%
69	composite	190077	2.3%
5	prime	188747	2.29%
27	composite	177623	2.15%
9	composite	177474	2.15%
59	prime	172613	2.09%
79	prime	164467	1.99%
67	prime	157290	1.91%
29	prime	154619	1.87%
47	prime	150825	1.83%
21	composite	148865	1.81%
61	prime	147500	1.79%
53	prime	146102	1.77%
77	composite	144883	1.76%

100 most recent attempts

Time finished	Time taken	Sequence	Final number	Reason for ending	Difficulty	Time allowed
2026-04-12 03:04:07	18.207	23,53,5,21,65,37,43,51,33,19	63	composite	1.02	60
2026-04-11 23:11:23	2.76	33	75	composite	1.02	60
2026-04-11 23:11:20	3.128	77,47	69	composite	1.02	60
2026-04-11 23:11:16	1.111		15	composite	1.02	60
2026-04-11 23:11:14	1.838		61	prime	1.02	60
2026-04-11 23:11:04	6.665	79,19,45,71	61	prime	1.02	60
2026-04-11 23:10:57	4.975	39	77	composite	1.02	60
2026-04-11 23:10:51	4.571	39	57	composite	1.02	60
2026-04-11 23:10:44	5.941	45	53	prime	1.02	60
2026-04-11 23:10:36	3.245		21	composite	1.02	60
2026-04-11 23:10:04	60.09	71,19,9,69,61,31,53,73,57,95,81,21,97,7,43,67,83,11,51,93,63,35,27,33,125	117	time	1.02	60
2026-04-11 23:08:54	60.015	49,21,33,23,45,3,25,37,15,93,35,43,71,55,69,39,27,75,73	1	time	1.02	60
2026-04-11 19:05:05	0.628		1	composite	1.02	60
2026-04-11 18:20:22	60.012	33,43,67,63,59,55,77,47,85,83,71,37,95,75,103,89,99,11,115,61,109,41,107,87,7,57,91,119,133,101,19,97	23	time	1.02	60
2026-04-11 18:19:18	19.897	17,59,73,39,1,69,89,79,29,13,85,41	91	composite	1.02	60
2026-04-11 18:18:58	16.475	7,25,9,29,15,51,81,47	79	prime	1.02	60
2026-04-11 18:18:35	22.97	57,11,45,53,63,5,15,13,85,35,89,75,41,103,7,93	91	composite	1.02	60
2026-04-11 18:17:19	45.761	43,47,29,71,15,51,39,11,41,45,31,87,13,95,19,9,25,83,5,49,79,101	119	composite	1.02	60
2026-04-11 18:16:33	0.525		75	composite	1.02	60
2026-04-11 18:16:32	2.794		29	prime	1.02	60
2026-04-11 18:16:29	4.48	67,39	37	prime	1.02	60
2026-04-11 18:16:24	9.407	29,43,17,23,25,77	87	composite	1.02	60
2026-04-11 18:16:14	37.75	21,49,23,9,13,33,69,77,85,1,87,95,7,47,57,71,59,61,113,67,15,25	51	composite	1.02	60
2026-04-11 18:15:35	1.001	55	59	prime	1.02	60
2026-04-11 18:15:34	0.492		11	prime	1.02	60
2026-04-11 18:15:33	0.475		29	prime	1.02	60
2026-04-11 18:15:32	0.458		61	prime	1.02	60
2026-04-11 18:15:31	1.494	21,55	5	prime	1.02	60
2026-04-11 18:15:29	0.968	49	23	prime	1.02	60
2026-04-11 18:15:27	0.951	35	5	prime	1.02	60
2026-04-11 18:15:27	0.585		13	prime	1.02	60
2026-04-11 18:15:25	7.972	31,33,75,1	59	prime	1.02	60
2026-04-11 18:15:16	1.868		69	composite	1.02	60
2026-04-11 18:15:14	6.37	63,55,35,83	41	prime	1.02	60
2026-04-11 18:14:50	54.823	43,81,45,71,19,5,49,3,55,33,27,85,25,67,99,77,51,47,65,107,63,21,93,103,53,127,113,117	39	composite	1.02	60
2026-04-11 18:13:54	2.452		29	prime	1.02	60
2026-04-11 18:13:51	8.673	13,19,61,33,29,15,25	39	composite	1.02	60
2026-04-11 18:13:42	3.284	25,3	71	prime	1.02	60
2026-04-11 18:13:38	0.7		31	prime	1.02	60
2026-04-11 18:13:36	0.183		31	prime	1.02	60
2026-04-11 18:13:35	0.752	21,25,35	17	prime	1.02	60
2026-04-11 18:13:34	0.2		19	prime	1.02	60
2026-04-11 18:13:34	0.182		67	prime	1.02	60
2026-04-11 18:13:33	1.978	69,55	37	prime	1.02	60
2026-04-11 18:13:33	0.2		23	prime	1.02	60
2026-04-11 18:13:30	5.912	9,67	19	prime	1.02	60
2026-04-11 18:13:24	11.174	73,53,49,33,51,41,65,81,5	39	composite	1.02	60
2026-04-11 18:13:12	0.894		71	prime	1.02	60
2026-04-11 18:13:11	1.377		53	prime	1.02	60
2026-04-11 18:13:09	11.449	13,81,73,69,23,79,47,71,89	59	prime	1.02	60
2026-04-11 18:12:57	5.882	23,37,3,7,5	71	prime	1.02	60
2026-04-11 18:12:50	12.016	25,79,9,81,3,63,87	91	composite	1.02	60
2026-04-11 18:12:38	10.405		73	prime	1.02	60
2026-04-11 18:12:27	3.736	49,47	37	prime	1.02	60
2026-04-11 18:12:22	2.477	51	33	composite	1.02	60
2026-04-11 18:12:19	4.553	15,37	57	composite	1.02	60
2026-04-11 18:12:14	1.284		53	prime	1.02	60
2026-04-11 18:12:12	4.978	59,29,51	19	prime	1.02	60
2026-04-11 12:55:37	6.235	79	21	composite	1.02	60
2026-04-11 12:55:25	36.892	53,67,33,25,5,87,19,3,83,13,15,7,93,71,41,27,37,103,17,61,31,57,1,51,99,59,43,115	129	composite	1.02	60
2026-04-11 12:30:50	28.295	79,7,49,25,33,5,11,21,71,95,91,63,1,69,41,39	19	prime	1.02	60
2026-04-11 12:30:21	8.279	25,65,23,71,11,69,45	57	composite	1.02	60
2026-04-11 12:30:11	9.79	31,21,51,83,71,75,69	59	prime	1.02	60
2026-04-11 12:30:01	5.735	33,65,15,73,17	87	composite	1.02	60
2026-04-11 12:29:54	4.344	5,77,31,1	49	composite	1.02	60
2026-04-11 12:29:49	24.729	23,37,63,1,59,33,7,5,71,79,47	87	composite	1.02	60
2026-04-11 12:18:23	42.334	69,81,75,41,31,21,7,43,29,53,23,51,99,71,83,17	61	prime	1.02	60
2026-04-11 12:17:39	13.977	31,17,25,49,11,43,29	27	composite	1.02	60
2026-04-11 12:17:24	9.817	21,15,35,67,5,57	51	composite	1.02	60
2026-04-11 12:17:13	3.007	11,45	51	composite	1.02	60
2026-04-11 12:17:09	4.889	71,11,47,83	57	composite	1.02	60
2026-04-11 12:17:03	10.414	17,55,3,35	71	prime	1.02	60
2026-04-11 12:16:53	1.239		31	prime	1.02	60
2026-04-11 12:16:51	0.872		67	prime	1.02	60
2026-04-11 12:16:49	5.023	75,49,39,37	11	prime	1.02	60
2026-04-11 12:16:41	18.016	55,27,63,43,61,37,45,79,35,25,23,3,65,29,9	89	prime	1.02	60
2026-04-11 12:16:22	7.049	1,79,7,61	5	prime	1.02	60
2026-04-11 12:16:14	2.528		1	composite	1.02	60
2026-04-11 12:16:11	1.617	33	53	prime	1.02	60
2026-04-11 12:16:08	20.722	63,33,77,39,55,71,47,81,31,67,21	87	composite	1.02	60
2026-04-11 12:15:43	21.111	37,65,7,33,45,67,23,49,89,61	93	composite	1.02	60
2026-04-11 12:15:18	17.345	61,35,7,81,47	83	prime	1.02	60
2026-04-11 09:30:45	11	77,73,71,3,5,55,7	23	prime	1.02	60
2026-04-11 09:30:33	2.464	59	47	prime	1.02	60
2026-04-11 08:00:48	30.582	7,71,35,61,65,17,11,87,9,43,13,69,5,47,79,81,41,31,113,1,27,15,97,51,63,33,103,129,93,85,133	137	prime	1.02	60
2026-04-11 04:29:42	65.894		7	time	1.02	60
2026-04-11 04:28:33	30.334	41,17,61,31,77,71,33,3,45,75,9,83,59,87,57,55,37,11,107,19,89,7,99,109,5,1,111	129	composite	1.02	60
2026-04-11 04:28:01	0.647		39	composite	1.02	60
2026-04-11 04:28:00	7.96	79,33,7,9,27,63,29	59	prime	1.02	60
2026-04-11 04:27:51	1.013		47	prime	1.02	60
2026-04-11 04:27:50	0.526		15	composite	1.02	60
2026-04-11 04:27:48	17.776	45,17,47,11,29,5,65,67,51,15,7,93,19,55,79	89	prime	1.02	60
2026-04-11 04:27:29	17.449	69,21,27,55,67,87,23,41,25,61,63,11,33,79,15,81,35,109	71	prime	1.02	60
2026-04-11 04:27:12	0.116		17	prime	1.02	60
2026-04-11 04:27:12	0.115		17	prime	1.02	60
2026-04-11 04:27:11	0.125		11	prime	1.02	60
2026-04-11 04:27:11	0.213	77	5	prime	1.02	60
2026-04-11 04:27:11	0.108		61	prime	1.02	60
2026-04-11 04:27:10	0.21	63	11	prime	1.02	60
2026-04-11 04:27:10	0.236		59	prime	1.02	60

Time finished

Time taken

Sequence

Final number

Reason for ending

Difficulty

Max. number

Time allowed

2026-04-12 03:04:07

18.207

23,53,5,21,65,37,43,51,33,19

composite

1.02

2026-04-11 23:11:23

2.76

composite

1.02

2026-04-11 23:11:20

3.128

77,47

composite

1.02

2026-04-11 23:11:16

1.111

composite

1.02

2026-04-11 23:11:14

1.838

prime

1.02

2026-04-11 23:11:04

6.665

79,19,45,71

prime

1.02

2026-04-11 23:10:57

4.975

composite

1.02

2026-04-11 23:10:51

4.571

composite

1.02

2026-04-11 23:10:44

5.941

prime

1.02

2026-04-11 23:10:36

3.245

composite

1.02

2026-04-11 23:10:04

60.09

71,19,9,69,61,31,53,73,57,95,81,21,97,7,43,67,83,11,51,93,63,35,27,33,125

117

time

1.02

2026-04-11 23:08:54

60.015

49,21,33,23,45,3,25,37,15,93,35,43,71,55,69,39,27,75,73

time

1.02

2026-04-11 19:05:05

0.628

composite

1.02

2026-04-11 18:20:22

60.012

33,43,67,63,59,55,77,47,85,83,71,37,95,75,103,89,99,11,115,61,109,41,107,87,7,57,91,119,133,101,19,97

time

1.02

2026-04-11 18:19:18

19.897

17,59,73,39,1,69,89,79,29,13,85,41

composite

1.02

2026-04-11 18:18:58

16.475

7,25,9,29,15,51,81,47

prime

1.02

2026-04-11 18:18:35

22.97

57,11,45,53,63,5,15,13,85,35,89,75,41,103,7,93

composite

1.02

2026-04-11 18:17:19

45.761

43,47,29,71,15,51,39,11,41,45,31,87,13,95,19,9,25,83,5,49,79,101

119

composite

1.02

2026-04-11 18:16:33

0.525

composite

1.02

2026-04-11 18:16:32

2.794

prime

1.02

2026-04-11 18:16:29

4.48

67,39

prime

1.02

2026-04-11 18:16:24

9.407

29,43,17,23,25,77

composite

1.02

2026-04-11 18:16:14

37.75

21,49,23,9,13,33,69,77,85,1,87,95,7,47,57,71,59,61,113,67,15,25

composite

1.02

2026-04-11 18:15:35

1.001

prime

1.02

2026-04-11 18:15:34

0.492

prime

1.02

2026-04-11 18:15:33

0.475

prime

1.02

2026-04-11 18:15:32

0.458

prime

1.02

2026-04-11 18:15:31

1.494

21,55

prime

1.02

2026-04-11 18:15:29

0.968

prime

1.02

2026-04-11 18:15:27

0.951

prime

1.02

2026-04-11 18:15:27

0.585

prime

1.02

2026-04-11 18:15:25

7.972

31,33,75,1

prime

1.02

2026-04-11 18:15:16

1.868

composite

1.02

2026-04-11 18:15:14

6.37

63,55,35,83

prime

1.02

2026-04-11 18:14:50

54.823

43,81,45,71,19,5,49,3,55,33,27,85,25,67,99,77,51,47,65,107,63,21,93,103,53,127,113,117

composite

1.02

2026-04-11 18:13:54

2.452

prime

1.02

2026-04-11 18:13:51

8.673

13,19,61,33,29,15,25

composite

1.02

2026-04-11 18:13:42

3.284

25,3

prime

1.02

2026-04-11 18:13:38

0.7

prime

1.02

2026-04-11 18:13:36

0.183

prime

1.02

2026-04-11 18:13:35

0.752

21,25,35

prime

1.02

2026-04-11 18:13:34

0.2

prime

1.02

2026-04-11 18:13:34

0.182

prime

1.02

2026-04-11 18:13:33

1.978

69,55

prime

1.02

2026-04-11 18:13:33

0.2

prime

1.02

2026-04-11 18:13:30

5.912

9,67

prime

1.02

2026-04-11 18:13:24

11.174

73,53,49,33,51,41,65,81,5

composite

1.02

2026-04-11 18:13:12

0.894

prime

1.02

2026-04-11 18:13:11

1.377

prime

1.02

2026-04-11 18:13:09

11.449

13,81,73,69,23,79,47,71,89

prime

1.02

2026-04-11 18:12:57

5.882

23,37,3,7,5

prime

1.02

2026-04-11 18:12:50

12.016

25,79,9,81,3,63,87

composite

1.02

2026-04-11 18:12:38

10.405

prime

1.02

2026-04-11 18:12:27

3.736

49,47

prime

1.02

2026-04-11 18:12:22

2.477

composite

1.02

2026-04-11 18:12:19

4.553

15,37

composite

1.02

2026-04-11 18:12:14

1.284

prime

1.02

2026-04-11 18:12:12

4.978

59,29,51

prime

1.02

2026-04-11 12:55:37

6.235

composite

1.02

2026-04-11 12:55:25

36.892

53,67,33,25,5,87,19,3,83,13,15,7,93,71,41,27,37,103,17,61,31,57,1,51,99,59,43,115

129

composite

1.02

2026-04-11 12:30:50

28.295

79,7,49,25,33,5,11,21,71,95,91,63,1,69,41,39

prime

1.02

2026-04-11 12:30:21

8.279

25,65,23,71,11,69,45

composite

1.02

2026-04-11 12:30:11

9.79

31,21,51,83,71,75,69

prime

1.02

2026-04-11 12:30:01

5.735

33,65,15,73,17

composite

1.02

2026-04-11 12:29:54

4.344

5,77,31,1

composite

1.02

2026-04-11 12:29:49

24.729

23,37,63,1,59,33,7,5,71,79,47

composite

1.02

2026-04-11 12:18:23

42.334

69,81,75,41,31,21,7,43,29,53,23,51,99,71,83,17

prime

1.02

2026-04-11 12:17:39

13.977

31,17,25,49,11,43,29

composite

1.02

2026-04-11 12:17:24

9.817

21,15,35,67,5,57

composite

1.02

2026-04-11 12:17:13

3.007

11,45

composite

1.02

2026-04-11 12:17:09

4.889

71,11,47,83

composite

1.02

2026-04-11 12:17:03

10.414

17,55,3,35

prime

1.02

2026-04-11 12:16:53

1.239

prime

1.02

2026-04-11 12:16:51

0.872

prime

1.02

2026-04-11 12:16:49

5.023

75,49,39,37

prime

1.02

2026-04-11 12:16:41

18.016

55,27,63,43,61,37,45,79,35,25,23,3,65,29,9

prime

1.02

2026-04-11 12:16:22

7.049

1,79,7,61

prime

1.02

2026-04-11 12:16:14

2.528

composite

1.02

2026-04-11 12:16:11

1.617

prime

1.02

2026-04-11 12:16:08

20.722

63,33,77,39,55,71,47,81,31,67,21

composite

1.02

2026-04-11 12:15:43

21.111

37,65,7,33,45,67,23,49,89,61

composite

1.02

2026-04-11 12:15:18

17.345

61,35,7,81,47

prime

1.02

2026-04-11 09:30:45

77,73,71,3,5,55,7

prime

1.02

2026-04-11 09:30:33

2.464

prime

1.02

2026-04-11 08:00:48

30.582

7,71,35,61,65,17,11,87,9,43,13,69,5,47,79,81,41,31,113,1,27,15,97,51,63,33,103,129,93,85,133

137

prime

1.02

2026-04-11 04:29:42

65.894

time

1.02

2026-04-11 04:28:33

30.334

41,17,61,31,77,71,33,3,45,75,9,83,59,87,57,55,37,11,107,19,89,7,99,109,5,1,111

129

composite

1.02

2026-04-11 04:28:01

0.647

composite

1.02

2026-04-11 04:28:00

7.96

79,33,7,9,27,63,29

prime

1.02

2026-04-11 04:27:51

1.013

prime

1.02

2026-04-11 04:27:50

0.526

composite

1.02

2026-04-11 04:27:48

17.776

45,17,47,11,29,5,65,67,51,15,7,93,19,55,79

prime

1.02

2026-04-11 04:27:29

17.449

69,21,27,55,67,87,23,41,25,61,63,11,33,79,15,81,35,109

prime

1.02

2026-04-11 04:27:12

0.116

prime

1.02

2026-04-11 04:27:12

0.115

prime

1.02

2026-04-11 04:27:11

0.125

prime

1.02

2026-04-11 04:27:11

0.213

prime

1.02

2026-04-11 04:27:11

0.108

prime

1.02

2026-04-11 04:27:10

0.21

prime

1.02

2026-04-11 04:27:10

0.236

prime

1.02

Stats for the "Is this prime?" game

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