20222...88881 (42-digits)

This number is a prime.

                              20 2224444444 4666666666 6868888888 8888688881

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

+ The smallest almost-all-even-digits prime containing one zero and 2*d times every nonzero even digit d. [Loungrides]

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