What is the Greatest Common Factor of 518 and 530?

Greatest common factor (GCF) of 518 and 530 is 2.

GCF(518,530) = 2

We will now calculate the prime factors of 518 and 530, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 518 and 530.

How to find the GCF of 518 and 530?

We will first find the prime factorization of 518 and 530. After we will calculate the factors of 518 and 530 and find the biggest common factor number .

Step-1: Prime Factorization of 518

Prime factors of 518 are 2, 7, 37. Prime factorization of 518 in exponential form is:

518 = 2¹ × 7¹ × 37¹

Step-2: Prime Factorization of 530

Prime factors of 530 are 2, 5, 53. Prime factorization of 530 in exponential form is:

530 = 2¹ × 5¹ × 53¹

Step-3: Factors of 518

List of positive integer factors of 518 that divides 518 without a remainder.

1, 2, 7, 14, 37, 74, 259

Step-4: Factors of 530

List of positive integer factors of 530 that divides 518 without a remainder.

1, 2, 5, 10, 53, 106, 265

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 518 and 530. The biggest common factor number is the GCF number.
So the greatest common factor 518 and 530 is 2.

Also check out the Least Common Multiple of 518 and 530