What is the Greatest Common Factor of 12218 and 12222?

Greatest common factor (GCF) of 12218 and 12222 is 2.

GCF(12218,12222) = 2

We will now calculate the prime factors of 12218 and 12222, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12218 and 12222.

How to find the GCF of 12218 and 12222?

We will first find the prime factorization of 12218 and 12222. After we will calculate the factors of 12218 and 12222 and find the biggest common factor number .

Step-1: Prime Factorization of 12218

Prime factors of 12218 are 2, 41, 149. Prime factorization of 12218 in exponential form is:

12218 = 2¹ × 41¹ × 149¹

Step-2: Prime Factorization of 12222

Prime factors of 12222 are 2, 3, 7, 97. Prime factorization of 12222 in exponential form is:

12222 = 2¹ × 3² × 7¹ × 97¹

Step-3: Factors of 12218

List of positive integer factors of 12218 that divides 12218 without a remainder.

1, 2, 41, 82, 149, 298, 6109

Step-4: Factors of 12222

List of positive integer factors of 12222 that divides 12218 without a remainder.

1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 97, 126, 194, 291, 582, 679, 873, 1358, 1746, 2037, 4074, 6111

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12218 and 12222. The biggest common factor number is the GCF number.
So the greatest common factor 12218 and 12222 is 2.

Also check out the Least Common Multiple of 12218 and 12222