What is the Greatest Common Factor of 12215 and 12229?

Greatest common factor (GCF) of 12215 and 12229 is 7.

GCF(12215,12229) = 7

We will now calculate the prime factors of 12215 and 12229, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 12215 and 12229.

How to find the GCF of 12215 and 12229?

We will first find the prime factorization of 12215 and 12229. After we will calculate the factors of 12215 and 12229 and find the biggest common factor number .

Step-1: Prime Factorization of 12215

Prime factors of 12215 are 5, 7, 349. Prime factorization of 12215 in exponential form is:

12215 = 5¹ × 7¹ × 349¹

Step-2: Prime Factorization of 12229

Prime factors of 12229 are 7, 1747. Prime factorization of 12229 in exponential form is:

12229 = 7¹ × 1747¹

Step-3: Factors of 12215

List of positive integer factors of 12215 that divides 12215 without a remainder.

1, 5, 7, 35, 349, 1745, 2443

Step-4: Factors of 12229

List of positive integer factors of 12229 that divides 12215 without a remainder.

1, 7, 1747

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 12215 and 12229. The biggest common factor number is the GCF number.
So the greatest common factor 12215 and 12229 is 7.

Also check out the Least Common Multiple of 12215 and 12229