What is the least common factor of 78 and 77?

To answer the question, "What is the least common factor of 78 and 77?", we will start by defining and listing factors of 78 and 77.

Factors of 78 are all the integers that when multiplied by another integer equal 78. Likewise, factors of 77 are all the integers that when multiplied by another integer equal 77.

The factors of 78 are 1, 2, 3, 6, 13, 26, 39, and 78.

The factors 77 are 1, 7, 11, and 77.

When you ask, "What is the least common factor of 78 and 77?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 78 and 77 have in common is 1.

Note that all integers, such as 78 and 77, 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 78 and 77, you may also be interested in knowing the greatest common factor of 78 and 77. The greatest factor 78 and 77 have in common, per the list above, is 1.

When you asked for the least common factor of 78 and 77, did you mean least common multiple? If so, the least common multiple of 78 and 77 is 6006.

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