3929

This number is a prime.

+ The number of solutions of making 100 with 1-9 and basic operations {( ), +, -, x, /} is prime. [Poo Sung]

(There is one curio for this number that has not yet been approved by an editor.)

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