1961

This number is a composite.

Single Curio View: (Seek other curios for this number)

The only strobogrammatic tnaillirb concatenated from two double-digit primes and also the only strobogrammatic tnaillirb with prime-digit prime factors, 1961 = 37*53. [Loungrides]

Submitted: 2015-05-23 06:41:18; Last Modified: 2017-07-23 16:20:15.

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