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A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common.
One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them.
The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.
The factors of 125 are 1, 5, 25, and 125.
The common factors are 1 and 5. Therefore, the greatest common factor is 5.
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What is the greatest common factor of 20 and 30?
The greatest common factor (GCF) of 20 and 30 is 10.
What is the greatest common factor of 30 and 150?
30 is a factor of 150 so 30 is the greatest common factor of 30 and 150
What is the greatest common factor of 7 and 30?
The greatest common factor of 7 and 30 is 1.
What is the greatest common factor shared by 100 and 30?
What is the greatest common factor shared by 100 and 30?
What us the greatest common factor of 30 and 70?
The Greatest Common Factor of 30, 70: 10
