# 5

This number is a prime.

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

The smaller in a set of twin primes whose product is the concatenation of two successive primes, i.e., 5*7 = 3~5. Is there another set of twin primes with this property? See PC89107...70827 (36-digits) for a near hit! [Honaker]

F_{n} = 2^(2^*n*) + 1 are semiprimes for *n* = 5, 6, 7, and 8. [De Geest and
Honaker]

Can the sum of the first n Fibonacci primes be a Fibonacci number greater than 5? [Honaker]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell