What is the least common factor of 4 and 70?

To answer the question, "What is the least common factor of 4 and 70?", we will start by defining and listing factors of 4 and 70.

Factors of 4 are all the integers that when multiplied by another integer equal 4. Likewise, factors of 70 are all the integers that when multiplied by another integer equal 70.

The factors of 4 are 1, 2, and 4.

The factors 70 are 1, 2, 5, 7, 10, 14, 35, and 70.

When you ask, "What is the least common factor of 4 and 70?", least is the key word here. Least means smallest. Thus, the smallest or least common factor that 4 and 70 have in common is 1.

Note that all integers, such as 4 and 70, 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 4 and 70, you may also be interested in knowing the greatest common factor of 4 and 70. The greatest factor 4 and 70 have in common, per the list above, is 2.

When you asked for the least common factor of 4 and 70, did you mean least common multiple? If so, the least common multiple of 4 and 70 is 140.

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