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]

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