What is the Greatest Common Factor of 63309 and 63315?

Greatest common factor (GCF) of 63309 and 63315 is 3.

GCF(63309,63315) = 3

We will now calculate the prime factors of 63309 and 63315, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 63309 and 63315.

How to find the GCF of 63309 and 63315?

We will first find the prime factorization of 63309 and 63315. After we will calculate the factors of 63309 and 63315 and find the biggest common factor number .

Step-1: Prime Factorization of 63309

Prime factors of 63309 are 3, 47, 449. Prime factorization of 63309 in exponential form is:

63309 = 3¹ × 47¹ × 449¹

Step-2: Prime Factorization of 63315

Prime factors of 63315 are 3, 5, 7, 67. Prime factorization of 63315 in exponential form is:

63315 = 3³ × 5¹ × 7¹ × 67¹

Step-3: Factors of 63309

List of positive integer factors of 63309 that divides 63309 without a remainder.

1, 3, 47, 141, 449, 1347, 21103

Step-4: Factors of 63315

List of positive integer factors of 63315 that divides 63309 without a remainder.

1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 67, 105, 135, 189, 201, 315, 335, 469, 603, 945, 1005, 1407, 1809, 2345, 3015, 4221, 7035, 9045, 12663, 21105

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 63309 and 63315. The biggest common factor number is the GCF number.
So the greatest common factor 63309 and 63315 is 3.

Also check out the Least Common Multiple of 63309 and 63315