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 is: 1
The least common factor of any set of integers is 1.
14 is not a multiple of 42 or of 168, so it certainly isn't a multiple of both of them.14 is a factor of 42 and of 168.Their least common multiple is 168.
The least common multiple of 42 , 5 , 7 = 210
The least common multiple of 8 and 42 is one.