12484...48421 (457-digits)

This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).

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The largest non-titanic “Peak and Valley” prime, formed from the digits that are powers of 2, i.e., (1248). [Loungrides]

Submitted: 2016-06-23 18:51:55; Last Modified: 2018-04-17 03:53:38.