What is the Greatest Common Factor of 22215 and 22221?

Greatest common factor (GCF) of 22215 and 22221 is 3.

GCF(22215,22221) = 3

We will now calculate the prime factors of 22215 and 22221, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 22215 and 22221.

How to find the GCF of 22215 and 22221?

We will first find the prime factorization of 22215 and 22221. After we will calculate the factors of 22215 and 22221 and find the biggest common factor number .

Step-1: Prime Factorization of 22215

Prime factors of 22215 are 3, 5, 1481. Prime factorization of 22215 in exponential form is:

22215 = 3¹ × 5¹ × 1481¹

Step-2: Prime Factorization of 22221

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

22221 = 3³ × 823¹

Step-3: Factors of 22215

List of positive integer factors of 22215 that divides 22215 without a remainder.

1, 3, 5, 15, 1481, 4443, 7405

Step-4: Factors of 22221

List of positive integer factors of 22221 that divides 22215 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 22215 and 22221. The biggest common factor number is the GCF number.
So the greatest common factor 22215 and 22221 is 3.

Also check out the Least Common Multiple of 22215 and 22221