What is the Greatest Common Factor of 18639 and 18653?

Greatest common factor (GCF) of 18639 and 18653 is 1.

GCF(18639,18653) = 1

We will now calculate the prime factors of 18639 and 18653, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18639 and 18653.

How to find the GCF of 18639 and 18653?

We will first find the prime factorization of 18639 and 18653. After we will calculate the factors of 18639 and 18653 and find the biggest common factor number .

Step-1: Prime Factorization of 18639

Prime factors of 18639 are 3, 19, 109. Prime factorization of 18639 in exponential form is:

18639 = 3² × 19¹ × 109¹

Step-2: Prime Factorization of 18653

Prime factors of 18653 are 23, 811. Prime factorization of 18653 in exponential form is:

18653 = 23¹ × 811¹

Step-3: Factors of 18639

List of positive integer factors of 18639 that divides 18639 without a remainder.

1, 3, 9, 19, 57, 109, 171, 327, 981, 2071, 6213

Step-4: Factors of 18653

List of positive integer factors of 18653 that divides 18639 without a remainder.

1, 23, 811

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18639 and 18653. The biggest common factor number is the GCF number.
So the greatest common factor 18639 and 18653 is 1.

Also check out the Least Common Multiple of 18639 and 18653