What is the Greatest Common Factor of 15500 and 15508?

Greatest common factor (GCF) of 15500 and 15508 is 4.

GCF(15500,15508) = 4

We will now calculate the prime factors of 15500 and 15508, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15500 and 15508.

How to find the GCF of 15500 and 15508?

We will first find the prime factorization of 15500 and 15508. After we will calculate the factors of 15500 and 15508 and find the biggest common factor number .

Step-1: Prime Factorization of 15500

Prime factors of 15500 are 2, 5, 31. Prime factorization of 15500 in exponential form is:

15500 = 2² × 5³ × 31¹

Step-2: Prime Factorization of 15508

Prime factors of 15508 are 2, 3877. Prime factorization of 15508 in exponential form is:

15508 = 2² × 3877¹

Step-3: Factors of 15500

List of positive integer factors of 15500 that divides 15500 without a remainder.

1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 125, 155, 250, 310, 500, 620, 775, 1550, 3100, 3875, 7750

Step-4: Factors of 15508

List of positive integer factors of 15508 that divides 15500 without a remainder.

1, 2, 4, 3877, 7754

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15500 and 15508. The biggest common factor number is the GCF number.
So the greatest common factor 15500 and 15508 is 4.

Also check out the Least Common Multiple of 15500 and 15508