34
This number is a composite.
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34 = π(144). Note that 34 and 144 are Fibonacci numbers. No larger example of this type is known. [Honaker]
There are 34 five-digit primes formed from the five odd digits. This means there's a Fibonacci number of Fibonacci-digit primes formed from the Fibonacci number of odd digits. [Silva and Honaker]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell