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.
4
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The answer is 4 because it s the smallest number that both 2 and 4 divide equally into!
It must be 10.
It can be both. 4 is a multiple of 2, meaning 2 times something equals 4. 4 is a factor of 16. Meaning 16 divided by something is 4. Make sense?
The LCM of 6, 9, 4, and 2 is 36. The LCM must include at least 2·2 to be a multiple of 4 and 3·3 to be a multiple of 9. 2·2·3·3 = 36 = which is also a multiple of both 2 and 6.
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8 2X4, any multiple of 8 say n8 2X4Xn and is therefore divisible by both 2 and 4
4 and 16
Both 1 and 2 are factors of 16, but not multiples of 4.
Any multiple of 4 is also a multiple of 2.