The multiples of a number are any numbers that can divide evenly by that original number. They are called multiples because you can multiply the original number to arrive at them. For example, 24 is a multiple of 8 because 24 can divide by 8. It is a multiple because you can get to 24 by doing 8x3.
it means that it is something about math
what does key mean in math
Approximately
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it means that it is something about math
the base.
what does key mean in math
LCM means lowest common multiple
Approximately
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I do not know of such a word related to math(s)
There is no such math word, so it does not mean anything. You may wish to check your spelling before posting questions!
I think it means Least Common Multiple...
multiply, multiplication, multiple
LCM is an abbreviation for "least common multiple."