10200...00201 (55-digits)

This number is a prime.

                10200 3000400005 0000060000 0070000006 0000050000 4000300201

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

+ Palindromic prime formed by ascending and descending concatenation of the first seven digits followed by zeros in ascending and descending number. [Silva]

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