198

This number is a composite.

Single Curio View:   (Seek other curios for this number)
The difference between any odd-digit emirp pairs is divisible by 198. [Green]

Submitted: 2010-05-11 19:53:53;   Last Modified: 2010-05-11 22:29:04.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell