11111...11111 (3269-digits)
This number is a probable-prime (likely to be a prime but we have not (re-)proven it on this site).
Just showing those entries submitted by 'Earls': (Click here to show all)
A modified Palindromic Wing Number (modified because it has three digits in the center that differ from the rest instead of just one) that is a Fermat and Lucas PRP. [Earls]
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