common divisor vs common measure

common divisor and common measure both are nouns.

Word	Noun	Adjective	Verb	Adverb
common divisor	Yes	No	No	No
common measure	Yes	No	No	No

As nouns, common divisor and common measure are synonyms defined as:

common divisor and common measure: an integer that divides two (or more) other integers evenly

Other synonyms of common divisor include common factor.

common divisor (noun)	common measure (noun)
an integer that divides two (or more) other integers evenly	the usual (iambic) meter of a ballad
	an integer that divides two (or more) other integers evenly
	a time signature indicating four beats to the bar