What is the Greatest Common Factor of 20521 and 20531?

Greatest common factor (GCF) of 20521 and 20531 is 1.

GCF(20521,20531) = 1

We will now calculate the prime factors of 20521 and 20531, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20521 and 20531.

How to find the GCF of 20521 and 20531?

We will first find the prime factorization of 20521 and 20531. After we will calculate the factors of 20521 and 20531 and find the biggest common factor number .

Step-1: Prime Factorization of 20521

Prime factors of 20521 are 20521. Prime factorization of 20521 in exponential form is:

20521 = 20521¹

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 20521

List of positive integer factors of 20521 that divides 20521 without a remainder.

Step-4: Factors of 20531

List of positive integer factors of 20531 that divides 20521 without a remainder.

1, 7, 49, 419, 2933

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20521 and 20531. The biggest common factor number is the GCF number.
So the greatest common factor 20521 and 20531 is 1.

Also check out the Least Common Multiple of 20521 and 20531