47867...11079 (26-digits)

This number is a prime.

478677 4223206688 0047611079

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F. Cohen and J. L. Selfridge [CS1975] observed that the above prime number plus or minus a power of 2 can never be a prime power.

Submitted: 2006-09-04 16:45:47; Last Modified: 2008-05-31 14:41:25.