223

This number is a prime.

Just showing those entries submitted by 'Trotter': (Click here to show all)

+ The sums of the nth powers of its digits are prime for all n between 1 and 6 inclusive: sum of digits = 7, sum of squares of digits = 17, sum of cubes of digits = 43, sum of fourth powers = 113, sum of fifth powers = 307 and sum of sixth powers = 857. [Trotter]

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell