1409

This number is a prime.

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

The smallest emirp whose digits are distinct square digits. Note that its reversal is the largest such emirp. [Loungrides]

The first emirp p such that 2p+1, 3p+2, and 4p+3 are prime. [Loungrides]

The smallest prime p such that 2p+1, 3p+2, 4p+3 are prime. [Loungrides]

The first multidigit prime (emirp) in the sequence of pentanacci numbers whose predermined terms are the odd digits. [Loungrides]