This number is a composite.

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

+ The smallest number that can be expressed as a sum of two two-digit primes, each ending with the digit three, in two different ways (66 = 13 + 53 = 23 + 43). [Sladcik]

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