What is the least common factor of 9 and 61?

To answer the question, "What is the least common factor of 9 and 61?", we will start by defining and listing factors of 9 and 61.

Factors of 9 are all the integers that when multiplied by another integer equal 9. Likewise, factors of 61 are all the integers that when multiplied by another integer equal 61.

The factors of 9 are 1, 3, and 9.

The factors 61 are 1 and 61.

When you ask, "What is the least common factor of 9 and 61?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 9 and 61 have in common is 1.

Note that all integers, such as 9 and 61, 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 9 and 61, you may also be interested in knowing the greatest common factor of 9 and 61. The greatest factor 9 and 61 have in common, per the list above, is 1.

When you asked for the least common factor of 9 and 61, did you mean least common multiple? If so, the least common multiple of 9 and 61 is 549.

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