What is the Greatest Common Factor of 21108 and 21122?

Greatest common factor (GCF) of 21108 and 21122 is 2.

GCF(21108,21122) = 2

We will now calculate the prime factors of 21108 and 21122, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21108 and 21122.

How to find the GCF of 21108 and 21122?

We will first find the prime factorization of 21108 and 21122. After we will calculate the factors of 21108 and 21122 and find the biggest common factor number .

Step-1: Prime Factorization of 21108

Prime factors of 21108 are 2, 3, 1759. Prime factorization of 21108 in exponential form is:

21108 = 2² × 3¹ × 1759¹

Step-2: Prime Factorization of 21122

Prime factors of 21122 are 2, 59, 179. Prime factorization of 21122 in exponential form is:

21122 = 2¹ × 59¹ × 179¹

Step-3: Factors of 21108

List of positive integer factors of 21108 that divides 21108 without a remainder.

1, 2, 3, 4, 6, 12, 1759, 3518, 5277, 7036, 10554

Step-4: Factors of 21122

List of positive integer factors of 21122 that divides 21108 without a remainder.

1, 2, 59, 118, 179, 358, 10561

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21108 and 21122. The biggest common factor number is the GCF number.
So the greatest common factor 21108 and 21122 is 2.

Also check out the Least Common Multiple of 21108 and 21122