367283149612781288191

This number is a prime.

3 6728314961 2781288191

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Largest known prime by concatenating Mersenne primes and Perfect numbers consecutively, i.e., 3,6,7,28,... . [Sariyar]

Submitted: 2018-05-21 12:35:47; Last Modified: 2018-05-21 12:39:44.