491

This number is a prime.

Just showing those entries submitted by 'Loungrides': (Click here to show all)

+ 10000^491-491 is the smallest titanic prime of form 10000^n-n, where n is prime. [Loungrides]

+ The sum of first two Lychrel numbers is prime, i.e., 196+295. [Loungrides]

(There are 2 curios for this number that have not yet been approved by an editor.)

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell