This number is a composite.

Single Curio View:   (Seek other curios for this number)
A MATHEMATICA search confirmed the three hundred nineteen digit almost-repdigit prime consisting of three hundred eighteen 3's followed by the digit 1. The closed formula for this term in the sequence is given by ((10^(319)-7)/3. [Schiffman]

Submitted: 2018-03-31 19:35:23;   Last Modified: 2018-03-31 19:43:03.
Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell