The GCF of 55, 77, and 132 is 11.
It is 11
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The GCF is 1.
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 33 are 1, 3, 11, and 33. The factors of 55 are 1, 5, 11, and 55. The factors of 132 are 1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, and 132. The common factors are 1 and 11. Therefore, the greatest common factor is 11.
The greatest common factor of 55 and 88 is 11.
The greatest common factor of 15 and 55 is 5.
The greatest common factor of 30,40, and 55 is 5.