843753

This number is a composite.

+ 843753 x 222222 ± 1 is a 6696-digit twin prime pair found by Rivera and Gallot in 1997. It was the first time that a twin prime found using Proth.exe by a solitaire prime-hunter hit the Top Ten Table of twin-primes (2nd place), compiled by C. Caldwell. [Rivera]

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell