61

This number is a prime.

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61 is the (6 - 1)th repfigit number: 61, 6 + 1 = 7, 1 + 7 = 8, 7 + 8 = 15, 8 + 15 = 23, 15 + 23 = 38, 23 + 38 = 61. [Mirizzi]

Submitted: 2002-02-19 22:52:36; Last Modified: 2008-07-31 12:27:35.