77777...77777 (283-digits)

This number is a prime.

                                                                         777
7777777777 7777777777 7777777777 7777777777 7777777777 7777777777 7777777777
7777777777 7777777777 7777777777 7777777777 7777777777 7777777777 7777777222
7777777777 7777777777 7777777777 7777777777 7777777777 7777777777 7777777777
7777777777 7777777777 7777777777 7777777777 7777777777 7777777777 7777777777

Just showing those entries submitted by 'Loungrides': (Click here to show all)

+ The smallest special wing prime with central number 222, greater than a googol. [Loungrides]

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