14和6的最大公约数是2,
所以最小公倍数为14x6/2=42
4=2*2
21=3*7
4和21的公因数只有1
4和21的最小公倍数是84.
6和14的最小公倍数是?还有4和21的最小公倍数是?
6和14的最小公倍数是?还有4和21的最小公倍数是?
数学人气：623 ℃时间：2020-01-27 18:41:55
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