1231
This number is a prime.
Single Curio View: (Seek other curios for this number)
The smallest prime (emirp) of form x+R(x) where x is a prime and R(x) its reversal, in three ways, i.e., 1231 = 269+962 = 467+764 = 863+368. [Loungrides]
Submitted: 2014-09-23 17:11:28; Last Modified: 2019-01-09 17:22:29.
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell