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Subjects>Math>Basic Math

What is the greatest common factor of 21 and 99?

Anonymous

∙ 9y ago

Updated: 4/28/2022

The greatest common factor of 21 and 99 is 3.

21's factors are 1,3,and 7

99's factors are 1,3,9,11 33 (there may be more factors of 99).

The highest factor that both number have in common are 3.

Wiki User

∙ 9y ago

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Continue Learning about Basic Math

What is the greatest common factor of 55 and 99?

The greatest common factor of 55 and 99 is 11.The GCF of 55 and 99 is 11.

What is the greatest common factor of 45 81 and 99?

The greatest common factor is 9

Which pair of numbers has a greatest common factor that is a prime number 54 and 99 or 80 and 114?

The greatest common factor of 54 and 99 is 9, which is not prime. The greatest common factor of 80 and 114 is 2, which is prime.

What is the greatest common factor of 85833 and 10890?

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What is the greatest common factor of 84 and 99?

Answer: 3Definition: 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 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84.The factors of 99 are 1, 3, 9, 11, 33, and 99.The common factors are 1 and 3. Therefore, the greatest common factor is 3.

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