187

This number is a composite.

+ 187^(1*8*7)+1+8+7 is prime. This is the smallest three-digit non-zero number with this property. There are only two such numbers, the other being 232. [Opao]

(There are 2 curios for this number that have not yet been approved by an editor.)

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