注册领资料
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.2,100
E.4,900
【申友解析】
正确答案:A
90=3*3*2*5
196=2*2*7*7
300=2*2*3*5*5
所以M=2*2*3*3*5*5*7*7
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