42013
This number is a prime.
The only prime less than a googol produced by the alternate placement of the positive numbers to the right and left of the zero, i.e., 0, 01, 201, 2013, 42013. [Loungrides]
The largest Cyclops prime that consists of first five
digits. [Loungrides]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell