What is the Greatest Common Factor of 20797 and 20809?

Greatest common factor (GCF) of 20797 and 20809 is 1.

GCF(20797,20809) = 1

We will now calculate the prime factors of 20797 and 20809, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20797 and 20809.

How to find the GCF of 20797 and 20809?

We will first find the prime factorization of 20797 and 20809. After we will calculate the factors of 20797 and 20809 and find the biggest common factor number .

Step-1: Prime Factorization of 20797

Prime factors of 20797 are 7, 2971. Prime factorization of 20797 in exponential form is:

20797 = 7¹ × 2971¹

Step-2: Prime Factorization of 20809

Prime factors of 20809 are 20809. Prime factorization of 20809 in exponential form is:

20809 = 20809¹

Step-3: Factors of 20797

List of positive integer factors of 20797 that divides 20797 without a remainder.

1, 7, 2971

Step-4: Factors of 20809

List of positive integer factors of 20809 that divides 20797 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20797 and 20809. The biggest common factor number is the GCF number.
So the greatest common factor 20797 and 20809 is 1.

Also check out the Least Common Multiple of 20797 and 20809