What is the least common factor of 9 and 85?

To answer the question, "What is the least common factor of 9 and 85?", we will start by defining and listing factors of 9 and 85.

Factors of 9 are all the integers that when multiplied by another integer equal 9. Likewise, factors of 85 are all the integers that when multiplied by another integer equal 85.

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

The factors 85 are 1, 5, 17, and 85.

When you ask, "What is the least common factor of 9 and 85?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 9 and 85 have in common is 1.

Note that all integers, such as 9 and 85, 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 85, you may also be interested in knowing the greatest common factor of 9 and 85. The greatest factor 9 and 85 have in common, per the list above, is 1.

When you asked for the least common factor of 9 and 85, did you mean least common multiple? If so, the least common multiple of 9 and 85 is 765.

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