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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 14 are 1, 2, 7, and 14.
The factors of 15 are 1, 3, 5, and 15.
The factors of 20 are 1, 2, 4, 5, 10, and 20.
The only common factor is 1. Therefore, the greatest common factor is 1.
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Greatest common factor of 14 and 15?
The greatest (or highest) common factor is the highest number that divides exactly into two or more numbers. The greatest common factor of 14 and 15 is 1
Greatest common factor of 45 and 60?
The Greatest Common Factor (GCF) is: 15
What is the greatest common factor for 15 and 16?
The greatest common factor for 15 and 16 is 1.
Greatest common factor of 15 and 32?
The greatest common factor of 15 and 32 is 1
What is the greatest common factor of 15 and 55?
The greatest common factor of 15 and 55 is 5.
