18742...00001 (14287-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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Prime of the form 1+k(k+1)!/2, where k=4443. [Valluri]
Submitted: 2018-05-21 21:40:27; Last Modified: 2018-05-21 23:29:51.
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