What is the least common factor of 13 and 57?

To answer the question, "What is the least common factor of 13 and 57?", we will start by defining and listing factors of 13 and 57.

Factors of 13 are all the integers that when multiplied by another integer equal 13. Likewise, factors of 57 are all the integers that when multiplied by another integer equal 57.

The factors of 13 are 1 and 13.

The factors 57 are 1, 3, 19, and 57.

When you ask, "What is the least common factor of 13 and 57?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 13 and 57 have in common is 1.

Note that all integers, such as 13 and 57, 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 13 and 57, you may also be interested in knowing the greatest common factor of 13 and 57. The greatest factor 13 and 57 have in common, per the list above, is 1.

When you asked for the least common factor of 13 and 57, did you mean least common multiple? If so, the least common multiple of 13 and 57 is 741.

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 13 and 58?
Go here for the next least common factor problem on our list.