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Lots of numbers are NOT common factors. For example, 5, 7, 100...Get the greatest common factor of both numbers. All common factors are factors of this greatest common factor. Note that all of them must needs be less than or equal to the greatest common factor.

Any other number is NOT a common factor.

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The least common factor of any set of numbers is 1.

Everything except 12, 24, 36 and so on.

Anything that isn't 1, 2, 3, 6

5

Q: What is the least common factor of 12 an 30?

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The least common factor of any set of integers is 1.

The least common factor of any set of positive integers is 1.

The least common factor of any set of positive integers is 1.

The least common multiple f the numbers 12 and 30 is 60.

The Least Common Multiple (LCM) for 12 30 4 is 60.

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The least common factor is: 1

The least common factor of any set of integers is 1.

The least common factor of any set of integers is 1.

The least common factor of any set of positive integers is 1.

The least common factor of any set of positive integers is 1.

The least common factor of any set of integers is 1.

The least common factor of any set of integers is 1.

The least common factor is: 1

The least common factor is: 1

The least common factor is: 1

The least common factor of 30 and 35 is 1. The LCM of any set of integers is 1. The highest common factor is of 30 and 35 is 5.

The least common factor is 1. (The least common factor of any two or more positive integers is always 1.)