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标题: related to 哥德巴赫猜想 [打印本页]

作者: yma16    时间: 2007-5-12 18:16
标题: related to 哥德巴赫猜想

Prove that a big even number can be written as a sum of 4 primes.
www.ddhw.com

 

作者: yma16    时间: 2007-5-15 21:11
标题: answer

A big odd number can be written as a sum of 3 primes.  So a big even number can be written as a sum of 4 primes.
www.ddhw.com

 





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