This number is a prime.
Just showing those entries submitted by 'Post': (Click here to show all)
The factorial prime 26951! + 1, discovered in 2002 by Davis and Kuosa, is one of the largest known primes. It is 107707 digits in length. Note that 26951 is itself prime, and that the digit length is the 3-brilliant number: 107707 = 37 * 41 * 71. [Post]