What is the least common factor of 40 and 32?

To answer the question, "What is the least common factor of 40 and 32?", we will start by defining and listing factors of 40 and 32.

Factors of 40 are all the integers that when multiplied by another integer equal 40. Likewise, factors of 32 are all the integers that when multiplied by another integer equal 32.

The factors of 40 are 1, 2, 4, 5, 8, 10, 20, and 40.

The factors 32 are 1, 2, 4, 8, 16, and 32.

When you ask, "What is the least common factor of 40 and 32?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 40 and 32 have in common is 1.

Note that all integers, such as 40 and 32, 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 40 and 32, you may also be interested in knowing the greatest common factor of 40 and 32. The greatest factor 40 and 32 have in common, per the list above, is 8.

When you asked for the least common factor of 40 and 32, did you mean least common multiple? If so, the least common multiple of 40 and 32 is 160.

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 40 and 33?
Go here for the next least common factor problem on our list.