Factorial Primes
Term: n! − 1
Total: 27
Reference: Wikipedia and PrimePages
Number Digits When Who PrimePages − ID
632760! − 1 3395992 Oct 2024 Ryan Propper; MultiSieve/mtsieve; PRST 138667
208003! − 1 1015843 Jul 2016 Sou Fukui; MultiSieve/mtsieve; OpenPFGW 121944
147855! − 1 700177 Sep 2013 Pietari Snow; FactorialPrimorial Sieves; PrimeGrid; OpenPFGW 115328
103040! − 1 471794 Dec 2010 James Winskill; FactorialPrimorial Sieves; PrimeGrid; OpenPFGW 96944
94550! − 1 429390 Oct 2010 Dmitry Domanov; FactorialPrimorial Sieves; PrimeGrid; OpenPFGW 95248
34790! − 1 142891 May 2002 Leon Marchal; Phil Carmody; Nuutti Kuosa; OpenPFGW 79
21480! − 1 83727 Sep 2001 Ken Davis; Nuutti Kuosa; OpenPFGW 254
6917! − 1 23560 Oct 1998 Joel Armengaud; GIMPS; Prime95 7789
3610! − 1 11277 Oct 1993 Chris Caldwell; Dubner Cruncher 16771
3507! − 1 10912 Oct 1992 Chris Caldwell; Dubner Cruncher 16968
1963! − 1 5614 Oct 1992 Chris Caldwell; Harvey Dubner; Dubner Cruncher 23398
974! − 1 2490 Oct 1992 Chris Caldwell; Harvey Dubner; Dubner Cruncher 31592
546! − 1 1260 Oct 1992 Harvey Dubner; Dubner Cruncher 44969
469! − 1 1051 1981 Joe P. Buhler; Richard E. Crandall; Michael A. Penk 55020
379! − 1 815
324! − 1 675
166! − 1 298
94! − 1 147
38! − 1 45
33! − 1 37
32! − 1 36
30! − 1 33
14! − 1 11
12! − 1 9
7! − 1 4
6! − 1 3
4! − 1 2
3! − 1 1


Factorial Primes
Term: n! + 1
Total: 25
Reference: Wikipedia and PrimePages
Number Digits When Who PrimePages − ID
422429! + 1 2193027 Feb 2022 Ryan Propper; MultiSieve/mtsieve; OpenPFGW 133604
308084! + 1 1557176 Jan 2022 Ryan Propper; MultiSieve/mtsieve; OpenPFGW 133196
288465! + 1 1449771 Jan 2022 René Dohmen; OpenPFGW 133139
150209! + 1 712355 Oct 2011 René Dohmen; OpenPFGW 102627
110059! + 1 507082 Jun 2011 Peter Doggart; FactorialPrimorial Sieves; PrimeGrid; OpenPFGW 100445
26951! + 1 107707 May 2002 Ken Davis; Nuutti Kuosa; OpenPFGW 106
6380! + 1 21507 Oct 1998 Joel Armengaud; GIMPS; Prime95 8220
1477! + 1 4042 1984 Harvey Dubner; Dubner Cruncher 27279
872! + 1 2188 1983 Harvey Dubner; Dubner Cruncher 33856
427! + 1 940
399! + 1 867
340! + 1 715
320! + 1 665
154! + 1 272
116! + 1 191
77! + 1 114
73! + 1 106
41! + 1 50
37! + 1 44
27! + 1 29
11! + 1 8
3! + 1 1
2! + 1 1
1! + 1 1
0! + 1 1