131
This number is a prime.
Single Curio View: (Seek other curios for this number)
131 is the largest known prime p such that both p and the number
of digits in p! are palindromic numbers. [Gupta]
Submitted: 2024-02-20 14:56:33; Last Modified: 2024-02-20 15:22:49.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean