common divisor

Totitive, tot′i-tiv, n. a number less than another having with it no common divisor but unity.

The reader probably never has had occasion to compute a greatest common divisor since he left school.

Divide the number of harness into two parts, which must neither be equal nor have a common divisor.

The greatest common divisor of all the elements in the nation's political consciousness today is inevitably a Mr. Harding.

The Executive is the greatest common divisor of a diverse society.