What is the least common factor of 39 and 43?

To answer the question, "What is the least common factor of 39 and 43?", we will start by defining and listing factors of 39 and 43.

Factors of 39 are all the integers that when multiplied by another integer equal 39. Likewise, factors of 43 are all the integers that when multiplied by another integer equal 43.

The factors of 39 are 1, 3, 13, and 39.

The factors 43 are 1 and 43.

When you ask, "What is the least common factor of 39 and 43?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 39 and 43 have in common is 1.

Note that all integers, such as 39 and 43, 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 39 and 43, you may also be interested in knowing the greatest common factor of 39 and 43. The greatest factor 39 and 43 have in common, per the list above, is 1.

When you asked for the least common factor of 39 and 43, did you mean least common multiple? If so, the least common multiple of 39 and 43 is 1677.

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