回复：关于素数的题目求助

来源: 于 2010-04-10 05:14:37 [旧帖] [给我悄悄话] 本文已被阅读：次

If the difference between two whole numbers is one, the two numbers must be two consecutive numbers with one is even and the other is odd. The only even prime is 2, and 2 & 3 are two consective numbers and both are prime numbers.