What is the Greatest Common Factor of 21108 and 21119?

Greatest common factor (GCF) of 21108 and 21119 is 1.

GCF(21108,21119) = 1

We will now calculate the prime factors of 21108 and 21119, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21108 and 21119.

How to find the GCF of 21108 and 21119?

We will first find the prime factorization of 21108 and 21119. After we will calculate the factors of 21108 and 21119 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 21119

Prime factors of 21119 are 7, 431. Prime factorization of 21119 in exponential form is:

21119 = 7² × 431¹

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 21119

List of positive integer factors of 21119 that divides 21108 without a remainder.

1, 7, 49, 431, 3017

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21108 and 21119. The biggest common factor number is the GCF number.
So the greatest common factor 21108 and 21119 is 1.

Also check out the Least Common Multiple of 21108 and 21119