multiple vs lcm

multiple and lcm both are nouns.

Word	Noun	Adjective	Verb	Adverb
multiple	Yes	Yes	No	No
lcm	Yes	No	No	No

As nouns, lcm is a hyponym of multiple; that is, lcm is a word with a more specific, narrower meaning than multiple:

multiple: the product of a quantity by an integer
lcm: the smallest multiple that is exactly divisible by every member of a set of numbers

Other hyponyms of multiple include double, triple, quadruple, least common multiple, lowest common multiple.

multiple (noun)	lcm (noun)
the product of a quantity by an integer	the smallest multiple that is exactly divisible by every member of a set of numbers

multiple (adjective)	lcm (adjective)
having or involving or consisting of more than one part or entity or individual