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14 is not a factor, because 14 is a multiple of 7.
Well, honey, a factor of 14 that isn't a multiple of 7 is 2. You see, a factor of a number divides into it evenly, while a multiple is the result of multiplying a number by an integer. So, in this case, 2 fits the bill perfectly. Hope that clears things up for ya, sugar!
The LCM of 14 and 63 is 126. The least common multiple of two numbers is the product of the two numbers divided by their greatest common factor. The greatest common factor of 14 and 63 is 7, so the least common multiple is 14 x 63 ÷ 7 = 126.
NO!!! '7' is a FACTOR of '42'. However, '42' is a multiple of '7'.
Well, honey, the number 7 fits the bill. It's a factor of 14 because 14 divided by 7 equals 2, but it ain't a multiple of 2 because, well, it's just not. Math can be a real hoot sometimes, can't it?