WON TOPIC 113

World!Of
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WON plate
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[ September 3, 2001 ]
A titanic prime expression using only palindromes
Jim Fougeron (email)

Jim Fougeron, a very active prime prover, found the following
prime expression of the form k*b^e±1. All the components used
(coefficient k, basenumber b, exponent e and constant 1) are palindromic !
The resulting prime isn't, we cannot expect too much of course.
The length of the prime nevertheless is an impressive 21264 digits.

746151647 x 2⁷⁰⁶⁰⁷ + 1 = prime

Info source : Prime Curios! 746151647

The exponent 70607
is also the first member of a set of four palprimes in arithmetic progression
(70607, 73637, 76667, 79697) with common differences of 3030.

Info source : Palprimes in arithmetic progression

A000113

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