1003229774283941

This number is a prime.

100322 9774283941

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1003229774283941 is the smallest prime p that remains prime after inserting the digit 0-9 between all the digits of p, one at a time, thus producing ten new primes of 31 digits each. Found by Giovanni Resta, 2011. [Rivera]

Submitted: 2018-07-05 22:45:43; Last Modified: 2019-01-29 15:55:23.