1231

This number is a prime.

Just showing those entries submitted by 'Loungrides': (Click here to show all)

+ The smallest mountain emirp. [Loungrides]

+ 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]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell