What is the Greatest Common Factor of 22221 and 22239?

Greatest common factor (GCF) of 22221 and 22239 is 9.

GCF(22221,22239) = 9

We will now calculate the prime factors of 22221 and 22239, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 22221 and 22239.

How to find the GCF of 22221 and 22239?

We will first find the prime factorization of 22221 and 22239. After we will calculate the factors of 22221 and 22239 and find the biggest common factor number .

Step-1: Prime Factorization of 22221

Prime factors of 22221 are 3, 823. Prime factorization of 22221 in exponential form is:

22221 = 3³ × 823¹

Step-2: Prime Factorization of 22239

Prime factors of 22239 are 3, 7, 353. Prime factorization of 22239 in exponential form is:

22239 = 3² × 7¹ × 353¹

Step-3: Factors of 22221

List of positive integer factors of 22221 that divides 22221 without a remainder.

1, 3, 9, 27, 823, 2469, 7407

Step-4: Factors of 22239

List of positive integer factors of 22239 that divides 22221 without a remainder.

1, 3, 7, 9, 21, 63, 353, 1059, 2471, 3177, 7413

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 22221 and 22239. The biggest common factor number is the GCF number.
So the greatest common factor 22221 and 22239 is 9.

Also check out the Least Common Multiple of 22221 and 22239