No. 2 is a factor of 4. 4 is a multiple of 2.
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A multiple of two is simply the two times table.
1 x 2 = 2
2 x 2 = 4
3 x 2 = 6
and so on.
No, but vice versa holds true. Case and point: 6 is a multiple of 2, but not a multiple of 4. 8 is a multiple of 4, and is a multiple of 2. Because a factor of 4 is 2, every multiple of 4 is also a multiple of 2. But since 4 is not a factor of 2, rather, only half of it, only half of the multiples of 2 will be multiples of 4.
1 is a factor of 4 that is not a multiple of 2.
No, 90 is a multiple of 2 and 5, but not 4.
LCM stands for lowest common multiple. So, it has to be the lowest integer multiple of both 2 and 4. So the LCM of 2 and 4 is 4 not 2.
The Least Common Multiple (LCM) for 4 7 2 is 28.