请教一道数学题

ouyangqingyi

If M is the least common multiple of 90,196, and 300, which of the following is NOT a factor of M?

A.600

 B.700

C.900

D.2100

E.4900

答案选A,但我觉得这五个都是M 的因数呀,麻烦NN们详细的讲解一下吧

[此贴子已经被作者于2008-8-21 11:25:49编辑过]

ouyangqingyi

ding

disaka

怎么没人给解答啊，唉。。。

ouyangqingyi

ding again