What is the Greatest Common Factor of 66303 and 66321?

Greatest common factor (GCF) of 66303 and 66321 is 9.

GCF(66303,66321) = 9

We will now calculate the prime factors of 66303 and 66321, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66303 and 66321.

How to find the GCF of 66303 and 66321?

We will first find the prime factorization of 66303 and 66321. After we will calculate the factors of 66303 and 66321 and find the biggest common factor number .

Step-1: Prime Factorization of 66303

Prime factors of 66303 are 3, 53, 139. Prime factorization of 66303 in exponential form is:

66303 = 3² × 53¹ × 139¹

Step-2: Prime Factorization of 66321

Prime factors of 66321 are 3, 7369. Prime factorization of 66321 in exponential form is:

66321 = 3² × 7369¹

Step-3: Factors of 66303

List of positive integer factors of 66303 that divides 66303 without a remainder.

1, 3, 9, 53, 139, 159, 417, 477, 1251, 7367, 22101

Step-4: Factors of 66321

List of positive integer factors of 66321 that divides 66303 without a remainder.

1, 3, 9, 7369, 22107

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66303 and 66321. The biggest common factor number is the GCF number.
So the greatest common factor 66303 and 66321 is 9.

Also check out the Least Common Multiple of 66303 and 66321