312

This number is a composite.

Single Curio View: (Seek other curios for this number)

The largest possible sum of four distinct double-digit primes {89, 79, 73, 71} such that the sum of any three is prime. [Loungrides]

Submitted: 2013-04-15 07:04:35; Last Modified: 2025-12-28 00:14:47.