5-Feb-1995

Unsolved Problem 6:

Are there infinitely many prime Fibonacci numbers?

A prime number is an integer larger than 1 whose only positive divisors are 1 and itself.
A Fibonacci number is a member of the sequence
1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, ...
in which each term is the sum of the previous two terms.

Reference:

[Robbins 1993]
Neville Robbins, Beginning Number Theory. Wm. C. Brown Publishers. Dubuque, Iowa: 1993. Page 289.
Prime Fibonacci Numbers
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