0.815710...
This number is neither prime nor composite.
The sum of reciprocals of primes that are palindromic in binary number form. [Ranta]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is neither prime nor composite.
The sum of reciprocals of primes that are palindromic in binary number form. [Ranta]