What is the Greatest Common Factor of 6500 and 6520?

Greatest common factor (GCF) of 6500 and 6520 is 20.

GCF(6500,6520) = 20

We will now calculate the prime factors of 6500 and 6520, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 6500 and 6520.

How to find the GCF of 6500 and 6520?

We will first find the prime factorization of 6500 and 6520. After we will calculate the factors of 6500 and 6520 and find the biggest common factor number .

Step-1: Prime Factorization of 6500

Prime factors of 6500 are 2, 5, 13. Prime factorization of 6500 in exponential form is:

6500 = 2² × 5³ × 13¹

Step-2: Prime Factorization of 6520

Prime factors of 6520 are 2, 5, 163. Prime factorization of 6520 in exponential form is:

6520 = 2³ × 5¹ × 163¹

Step-3: Factors of 6500

List of positive integer factors of 6500 that divides 6500 without a remainder.

1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1300, 1625, 3250

Step-4: Factors of 6520

List of positive integer factors of 6520 that divides 6500 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 6500 and 6520. The biggest common factor number is the GCF number.
So the greatest common factor 6500 and 6520 is 20.

Also check out the Least Common Multiple of 6500 and 6520