40000...00007 (2324-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 of form 4*10^n+7 (case n=2323), as
of 2005. [Benney]
Submitted: 2019-01-05 05:34:11; Last Modified: 2019-01-05 05:36:23.
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