What is the Greatest Common Factor of 6396 and 6405?

Greatest common factor (GCF) of 6396 and 6405 is 3.

GCF(6396,6405) = 3

We will now calculate the prime factors of 6396 and 6405, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6396 and 6405.

How to find the GCF of 6396 and 6405?

We will first find the prime factorization of 6396 and 6405. After we will calculate the factors of 6396 and 6405 and find the biggest common factor number .

Step-1: Prime Factorization of 6396

Prime factors of 6396 are 2, 3, 13, 41. Prime factorization of 6396 in exponential form is:

6396 = 2² × 3¹ × 13¹ × 41¹

Step-2: Prime Factorization of 6405

Prime factors of 6405 are 3, 5, 7, 61. Prime factorization of 6405 in exponential form is:

6405 = 3¹ × 5¹ × 7¹ × 61¹

Step-3: Factors of 6396

List of positive integer factors of 6396 that divides 6396 without a remainder.

1, 2, 3, 4, 6, 12, 13, 26, 39, 41, 52, 78, 82, 123, 156, 164, 246, 492, 533, 1066, 1599, 2132, 3198

Step-4: Factors of 6405

List of positive integer factors of 6405 that divides 6396 without a remainder.

1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6396 and 6405. The biggest common factor number is the GCF number.
So the greatest common factor 6396 and 6405 is 3.

Also check out the Least Common Multiple of 6396 and 6405