What is the Greatest Common Factor of 20508 and 20516?

Greatest common factor (GCF) of 20508 and 20516 is 4.

GCF(20508,20516) = 4

We will now calculate the prime factors of 20508 and 20516, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20508 and 20516.

How to find the GCF of 20508 and 20516?

We will first find the prime factorization of 20508 and 20516. After we will calculate the factors of 20508 and 20516 and find the biggest common factor number .

Step-1: Prime Factorization of 20508

Prime factors of 20508 are 2, 3, 1709. Prime factorization of 20508 in exponential form is:

20508 = 2² × 3¹ × 1709¹

Step-2: Prime Factorization of 20516

Prime factors of 20516 are 2, 23, 223. Prime factorization of 20516 in exponential form is:

20516 = 2² × 23¹ × 223¹

Step-3: Factors of 20508

List of positive integer factors of 20508 that divides 20508 without a remainder.

1, 2, 3, 4, 6, 12, 1709, 3418, 5127, 6836, 10254

Step-4: Factors of 20516

List of positive integer factors of 20516 that divides 20508 without a remainder.

1, 2, 4, 23, 46, 92, 223, 446, 892, 5129, 10258

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20508 and 20516. The biggest common factor number is the GCF number.
So the greatest common factor 20508 and 20516 is 4.

Also check out the Least Common Multiple of 20508 and 20516