What is the least common factor of 4 and 31?

To answer the question, "What is the least common factor of 4 and 31?", we will start by defining and listing factors of 4 and 31.

Factors of 4 are all the integers that when multiplied by another integer equal 4. Likewise, factors of 31 are all the integers that when multiplied by another integer equal 31.

The factors of 4 are 1, 2, and 4.

The factors 31 are 1 and 31.

When you ask, "What is the least common factor of 4 and 31?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 4 and 31 have in common is 1.

Note that all integers, such as 4 and 31, have 1 as one of its factors. Thus, the answer to the least common factor of any two integers greater than 0 will always be 1.

Now that you know the least common factor of 4 and 31, you may also be interested in knowing the greatest common factor of 4 and 31. The greatest factor 4 and 31 have in common, per the list above, is 1.

When you asked for the least common factor of 4 and 31, did you mean least common multiple? If so, the least common multiple of 4 and 31 is 124.

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