196961
This number is a prime.
A strobogrammatic emirp which is the concatenation of two squares {14^2 = 196, 31^2 = 961} = 196_961. [Marcel]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Reginald McLean
This number is a prime.
A strobogrammatic emirp which is the concatenation of two squares {14^2 = 196, 31^2 = 961} = 196_961. [Marcel]