86689
This number is a prime.
The first circular-digit prime p whose sum of digits equals the number of circular-digit primes less than or equal to p. [Worrom]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell
This number is a prime.
The first circular-digit prime p whose sum of digits equals the number of circular-digit primes less than or equal to p. [Worrom]