What is the Greatest Common Factor of 21621 and 21626?

Greatest common factor (GCF) of 21621 and 21626 is 1.

GCF(21621,21626) = 1

We will now calculate the prime factors of 21621 and 21626, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21621 and 21626.

How to find the GCF of 21621 and 21626?

We will first find the prime factorization of 21621 and 21626. After we will calculate the factors of 21621 and 21626 and find the biggest common factor number .

Step-1: Prime Factorization of 21621

Prime factors of 21621 are 3, 7207. Prime factorization of 21621 in exponential form is:

21621 = 3¹ × 7207¹

Step-2: Prime Factorization of 21626

Prime factors of 21626 are 2, 11, 983. Prime factorization of 21626 in exponential form is:

21626 = 2¹ × 11¹ × 983¹

Step-3: Factors of 21621

List of positive integer factors of 21621 that divides 21621 without a remainder.

1, 3, 7207

Step-4: Factors of 21626

List of positive integer factors of 21626 that divides 21621 without a remainder.

1, 2, 11, 22, 983, 1966, 10813

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 21621 and 21626. The biggest common factor number is the GCF number.
So the greatest common factor 21621 and 21626 is 1.

Also check out the Least Common Multiple of 21621 and 21626