What is the Greatest Common Factor of 21122 and 21132?

Greatest common factor (GCF) of 21122 and 21132 is 2.

GCF(21122,21132) = 2

We will now calculate the prime factors of 21122 and 21132, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21122 and 21132.

How to find the GCF of 21122 and 21132?

We will first find the prime factorization of 21122 and 21132. After we will calculate the factors of 21122 and 21132 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 21132

Prime factors of 21132 are 2, 3, 587. Prime factorization of 21132 in exponential form is:

21132 = 2² × 3² × 587¹

Step-3: Factors of 21122

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

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

Step-4: Factors of 21132

List of positive integer factors of 21132 that divides 21122 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 587, 1174, 1761, 2348, 3522, 5283, 7044, 10566

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21122 and 21132. The biggest common factor number is the GCF number.
So the greatest common factor 21122 and 21132 is 2.

Also check out the Least Common Multiple of 21122 and 21132