9227
This number is a prime.
9227 = 23 + 35 + 57 + 711 + 1113 + 1317 + 1719 + 1923 + 2329 is prime. Note that each term is a concatenation of consecutive primes. [Poo Sung]
The smallest Yarborough emirp that yields another
Yarborough emirp when each of its digit is replaced by its
cube, i.e., (9^3:2^3:2^3:7^3 -> 72988343). [Bajpai]
Printed from the PrimePages <t5k.org> © G. L. Honaker and Chris K. Caldwell