What is the Greatest Common Factor of 204 and 219?

Greatest common factor (GCF) of 204 and 219 is 3.

GCF(204,219) = 3

We will now calculate the prime factors of 204 and 219, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 204 and 219.

How to find the GCF of 204 and 219?

We will first find the prime factorization of 204 and 219. After we will calculate the factors of 204 and 219 and find the biggest common factor number .

Step-1: Prime Factorization of 204

Prime factors of 204 are 2, 3, 17. Prime factorization of 204 in exponential form is:

204 = 2² × 3¹ × 17¹

Step-2: Prime Factorization of 219

Prime factors of 219 are 3, 73. Prime factorization of 219 in exponential form is:

219 = 3¹ × 73¹

Step-3: Factors of 204

List of positive integer factors of 204 that divides 204 without a remainder.

1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 102

Step-4: Factors of 219

List of positive integer factors of 219 that divides 204 without a remainder.

1, 3, 73

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 204 and 219. The biggest common factor number is the GCF number.
So the greatest common factor 204 and 219 is 3.

Also check out the Least Common Multiple of 204 and 219