What is the least common factor of 77 and 30?

To answer the question, "What is the least common factor of 77 and 30?", we will start by defining and listing factors of 77 and 30.

Factors of 77 are all the integers that when multiplied by another integer equal 77. Likewise, factors of 30 are all the integers that when multiplied by another integer equal 30.

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

The factors 30 are 1, 2, 3, 5, 6, 10, 15, and 30.

When you ask, "What is the least common factor of 77 and 30?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 77 and 30 have in common is 1.

Note that all integers, such as 77 and 30, 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 77 and 30, you may also be interested in knowing the greatest common factor of 77 and 30. The greatest factor 77 and 30 have in common, per the list above, is 1.

When you asked for the least common factor of 77 and 30, did you mean least common multiple? If so, the least common multiple of 77 and 30 is 2310.

Least Common Factor Calculator
Need the least common factor for another set of numbers? Please submit your numbers here:

What is the least common factor of 77 and 31?
Go here for the next least common factor problem on our list.