71717...11777 (100-digits)

This number is a prime.

7171711711 1711111711 1111117111
1111111111 7111111111 1111111111 1171111111 1111111111 1111111111 1111111777

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Prime number containing runs of ones with lengths patterned after the Fibonacci number series in-between sevens. [Barnes]

Submitted: 2020-07-27 20:53:25; Last Modified: 2020-07-27 21:10:27.