What is the Greatest Common Factor of 9638 and 9645?

Greatest common factor (GCF) of 9638 and 9645 is 1.

GCF(9638,9645) = 1

We will now calculate the prime factors of 9638 and 9645, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9638 and 9645.

How to find the GCF of 9638 and 9645?

We will first find the prime factorization of 9638 and 9645. After we will calculate the factors of 9638 and 9645 and find the biggest common factor number .

Step-1: Prime Factorization of 9638

Prime factors of 9638 are 2, 61, 79. Prime factorization of 9638 in exponential form is:

9638 = 2¹ × 61¹ × 79¹

Step-2: Prime Factorization of 9645

Prime factors of 9645 are 3, 5, 643. Prime factorization of 9645 in exponential form is:

9645 = 3¹ × 5¹ × 643¹

Step-3: Factors of 9638

List of positive integer factors of 9638 that divides 9638 without a remainder.

1, 2, 61, 79, 122, 158, 4819

Step-4: Factors of 9645

List of positive integer factors of 9645 that divides 9638 without a remainder.

1, 3, 5, 15, 643, 1929, 3215

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9638 and 9645. The biggest common factor number is the GCF number.
So the greatest common factor 9638 and 9645 is 1.

Also check out the Least Common Multiple of 9638 and 9645