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# 88

This number is a composite.

88 + 91^{n} is prime for *n* = 1 to 6. [Blanchette]

Palindromic strobogrammatic sum of the first Cunningham chain of the first kind (2, 5, 11, 23, 47). [Rock]

The following quotation about primes contains 88 letters: "The obvious mathematical breakthrough would be development of an easy way to factor large prime numbers." -- Bill Gates (1955- ). [Post]

There are 88 distinct-odd-digit primes. [Loungrides]

The sum of the first 88 emirps is 88 thousand. [Gaydos]

The third Honaker number equals the sum of the first two Honaker numbers (32 + 56). [Gaydos]

(There are 6 curios for this number that have not yet been approved by an editor.)

Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell