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Is 2009 a prime number?
passenger101
2009-01-02 08:12:20
( reads)
跟帖(2)
NaCl
2009-01-03 01:09:51
回复：No, 287 x 7 =2009
NaCl
2009-01-03 01:13:48
回复：回复：41 x 49 =2009
NaCl
2009-01-03 01:09:51回复：No, 287 x 7 =2009