What is the Greatest Common Factor of 67638 and 67647?

Greatest common factor (GCF) of 67638 and 67647 is 3.

GCF(67638,67647) = 3

We will now calculate the prime factors of 67638 and 67647, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67638 and 67647.

How to find the GCF of 67638 and 67647?

We will first find the prime factorization of 67638 and 67647. After we will calculate the factors of 67638 and 67647 and find the biggest common factor number .

Step-1: Prime Factorization of 67638

Prime factors of 67638 are 2, 3, 11273. Prime factorization of 67638 in exponential form is:

67638 = 2¹ × 3¹ × 11273¹

Step-2: Prime Factorization of 67647

Prime factors of 67647 are 3, 22549. Prime factorization of 67647 in exponential form is:

67647 = 3¹ × 22549¹

Step-3: Factors of 67638

List of positive integer factors of 67638 that divides 67638 without a remainder.

1, 2, 3, 6, 11273, 22546, 33819

Step-4: Factors of 67647

List of positive integer factors of 67647 that divides 67638 without a remainder.

1, 3, 22549

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67638 and 67647. The biggest common factor number is the GCF number.
So the greatest common factor 67638 and 67647 is 3.

Also check out the Least Common Multiple of 67638 and 67647