691

This number is a prime.

Single Curio View:   (Seek other curios for this number)
The largest known prime p such that tau(p) is congruent to 1 (mod p), where tau is Ramanujan's tau function. [Luen]

Submitted: 2018-01-01 13:46:36;   Last Modified: 2022-02-08 08:59:44.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell