回复:能不能解释一下?谢谢。
dynamic
2009-03-17 08:08:09
( reads)
2^1024 - 1 = (2^512 - 1)(2^512 + 1) = (2^256 - 1)(2^256 + 1)(2^512 + 1) = ... = (2 + 1)(2^2 + 1)(2^4 + 1)(2^8 + 1)...(2^512 + 1)
琼岛春荫
2009-03-17 08:33:43谢谢。