What is the Greatest Common Factor of 19626 and 19645?

Greatest common factor (GCF) of 19626 and 19645 is 1.

GCF(19626,19645) = 1

We will now calculate the prime factors of 19626 and 19645, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 19626 and 19645.

How to find the GCF of 19626 and 19645?

We will first find the prime factorization of 19626 and 19645. After we will calculate the factors of 19626 and 19645 and find the biggest common factor number .

Step-1: Prime Factorization of 19626

Prime factors of 19626 are 2, 3, 3271. Prime factorization of 19626 in exponential form is:

19626 = 2¹ × 3¹ × 3271¹

Step-2: Prime Factorization of 19645

Prime factors of 19645 are 5, 3929. Prime factorization of 19645 in exponential form is:

19645 = 5¹ × 3929¹

Step-3: Factors of 19626

List of positive integer factors of 19626 that divides 19626 without a remainder.

1, 2, 3, 6, 3271, 6542, 9813

Step-4: Factors of 19645

List of positive integer factors of 19645 that divides 19626 without a remainder.

1, 5, 3929

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 19626 and 19645. The biggest common factor number is the GCF number.
So the greatest common factor 19626 and 19645 is 1.

Also check out the Least Common Multiple of 19626 and 19645