What is the Greatest Common Factor of 459 and 468?

Greatest common factor (GCF) of 459 and 468 is 9.

GCF(459,468) = 9

We will now calculate the prime factors of 459 and 468, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 459 and 468.

How to find the GCF of 459 and 468?

We will first find the prime factorization of 459 and 468. After we will calculate the factors of 459 and 468 and find the biggest common factor number .

Step-1: Prime Factorization of 459

Prime factors of 459 are 3, 17. Prime factorization of 459 in exponential form is:

459 = 3³ × 17¹

Step-2: Prime Factorization of 468

Prime factors of 468 are 2, 3, 13. Prime factorization of 468 in exponential form is:

468 = 2² × 3² × 13¹

Step-3: Factors of 459

List of positive integer factors of 459 that divides 459 without a remainder.

1, 3, 9, 17, 27, 51, 153

Step-4: Factors of 468

List of positive integer factors of 468 that divides 459 without a remainder.

1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 459 and 468. The biggest common factor number is the GCF number.
So the greatest common factor 459 and 468 is 9.

Also check out the Least Common Multiple of 459 and 468