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                            4200 0000000000 0000000000 0000000000 0000000043

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

+ A prime number that begins with 42, ends with 43, and has a length of 44 digits. This is also the only known prime of the form n * 10n + n + 1. [Earls]




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