20032...32087 (48-digits)

This number is a prime.

                        20032011 2017202720 2920392053 2063206920 8120832087

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

+ The concatenation of the first 12 "prime" years of the 21st century is prime. (Note that 12 is the reversal of 21) [Loungrides]

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