The least common factor is 1. (The least common factor of any two or more positive integers is always 1.)
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The least common factor of any set of integers is 1.
The greatest factor is 72 which is a factor of 72 (though not of 60).
The highest common factor of the numbers 30, 60 and 72 is 6.
The least common factor is: 1
LCM(24, 60, 72) = 360.A common factor is 2.