49217...81977 (1022-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 smallest titanic "Sophie Germain-like" prime of the form 2*F(n)-1, where F(n) is a Fibonacci number. In this case, F(4889). [Rivera]

Submitted: 2020-08-07 15:32:28; Last Modified: 2020-08-07 21:05:17.