What is the Greatest Common Factor of 20513 and 20531?

Greatest common factor (GCF) of 20513 and 20531 is 1.

GCF(20513,20531) = 1

We will now calculate the prime factors of 20513 and 20531, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20513 and 20531.

How to find the GCF of 20513 and 20531?

We will first find the prime factorization of 20513 and 20531. After we will calculate the factors of 20513 and 20531 and find the biggest common factor number .

Step-1: Prime Factorization of 20513

Prime factors of 20513 are 73, 281. Prime factorization of 20513 in exponential form is:

20513 = 73¹ × 281¹

Step-2: Prime Factorization of 20531

Prime factors of 20531 are 7, 419. Prime factorization of 20531 in exponential form is:

20531 = 7² × 419¹

Step-3: Factors of 20513

List of positive integer factors of 20513 that divides 20513 without a remainder.

1, 73, 281

Step-4: Factors of 20531

List of positive integer factors of 20531 that divides 20513 without a remainder.

1, 7, 49, 419, 2933

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20513 and 20531. The biggest common factor number is the GCF number.
So the greatest common factor 20513 and 20531 is 1.

Also check out the Least Common Multiple of 20513 and 20531