9999999900000001
This number is a prime.
Just showing those entries submitted by 'Green': (Click here to show all)
The greatest prime factor of any 48-digit repdigit is
9999999900000001. [Green]
9999999900000001 is the 8th known prime, p, such that
(p)2 divides (p)3. Can you find other cases like this? [Green]
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