What is the Greatest Common Factor of 20491 and 20507?

Greatest common factor (GCF) of 20491 and 20507 is 1.

GCF(20491,20507) = 1

We will now calculate the prime factors of 20491 and 20507, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20491 and 20507.

How to find the GCF of 20491 and 20507?

We will first find the prime factorization of 20491 and 20507. After we will calculate the factors of 20491 and 20507 and find the biggest common factor number .

Step-1: Prime Factorization of 20491

Prime factors of 20491 are 31, 661. Prime factorization of 20491 in exponential form is:

20491 = 31¹ × 661¹

Step-2: Prime Factorization of 20507

Prime factors of 20507 are 20507. Prime factorization of 20507 in exponential form is:

20507 = 20507¹

Step-3: Factors of 20491

List of positive integer factors of 20491 that divides 20491 without a remainder.

1, 31, 661

Step-4: Factors of 20507

List of positive integer factors of 20507 that divides 20491 without a remainder.

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20491 and 20507. The biggest common factor number is the GCF number.
So the greatest common factor 20491 and 20507 is 1.

Also check out the Least Common Multiple of 20491 and 20507