The GCF of 5 and 45 is 5
Definition: 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 the numbers have in common.
Method:
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 5 are 1 and 5.
The factors of 45 are 1, 3, 5, 9, 15, and 45.
The common factors are 1 and 5. Therefore, the greatest common factor is 5.
The GCF/HCF of 5 and 45 is 5.
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The greatest common factor of 45 and 320 is 5.
The greatest common factor of 15, 45 and 100 is 5.
The Greatest Common Factor of 20, 35, 50: 5
The greatest common factor of 54, 5, 36, and 45 is 1.
5