What is the Greatest Common Factor of 20530 and 20535?

Greatest common factor (GCF) of 20530 and 20535 is 5.

GCF(20530,20535) = 5

We will now calculate the prime factors of 20530 and 20535, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20530 and 20535.

How to find the GCF of 20530 and 20535?

We will first find the prime factorization of 20530 and 20535. After we will calculate the factors of 20530 and 20535 and find the biggest common factor number .

Step-1: Prime Factorization of 20530

Prime factors of 20530 are 2, 5, 2053. Prime factorization of 20530 in exponential form is:

20530 = 2¹ × 5¹ × 2053¹

Step-2: Prime Factorization of 20535

Prime factors of 20535 are 3, 5, 37. Prime factorization of 20535 in exponential form is:

20535 = 3¹ × 5¹ × 37²

Step-3: Factors of 20530

List of positive integer factors of 20530 that divides 20530 without a remainder.

1, 2, 5, 10, 2053, 4106, 10265

Step-4: Factors of 20535

List of positive integer factors of 20535 that divides 20530 without a remainder.

1, 3, 5, 15, 37, 111, 185, 555, 1369, 4107, 6845

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20530 and 20535. The biggest common factor number is the GCF number.
So the greatest common factor 20530 and 20535 is 5.

Also check out the Least Common Multiple of 20530 and 20535