223373333
This number is a prime.
The smallest prime-digit prime with a sum of reciprocals of digits of 22/7, the grade school
approximation of π. [Gaydos]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean
This number is a prime.
The smallest prime-digit prime with a sum of reciprocals of digits of 22/7, the grade school
approximation of π. [Gaydos]