A=2乘以3乘以m B=2乘以3乘以7乘以m 则m=几时A,B的最大公因数是30谁来告诉告诉!求求了``

问题描述:

A=2乘以3乘以m B=2乘以3乘以7乘以m 则m=几时A,B的最大公因数是30
谁来告诉告诉!求求了``

A=2乘以3乘以m=6M
B=2乘以3乘以7乘以m=42M
A,B的最大公因数是6M=30
M=5