72323...25253 (3120-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 known prime-digit prime at the time: 72323252323272325252*(10^3120-1)/(10^20-1)+1. It was discovered by Harvey Dubner in 1992.

Submitted: 2018-04-01 16:57:32; Last Modified: 2018-04-01 17:01:32.