Answers

2015-07-14T21:39:23+08:00
2015-07-15T15:45:48+08:00
504= 2, 2, 2, 3, 3, 7
336= 2, 2, 2, 2, 3, 7
the common prime numbers are 2, 2, 2, 3, 7 if you multiply them, answer will be 168
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