A factorial prime is a prime number of the form n! ± 1, where n! is a factorial. n! - 1 is prime for n = 3, 4, 6, 7, 12, 14, 30, 32, 33, 38, 94, 166, 324, 379, 469, 546, 974, 1963, 3507, 3610, 6917, 21480, 26951, 34790, 94550, 103040, 147855, 208003, ... (OEIS A002982), the largest of which are summarized in the following table.

double factorial prime | factorial | integer sequence primes | prime number | primorial prime