What is the Greatest Common Factor of 15520 and 15530?

Greatest common factor (GCF) of 15520 and 15530 is 10.

GCF(15520,15530) = 10

We will now calculate the prime factors of 15520 and 15530, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15520 and 15530.

How to find the GCF of 15520 and 15530?

We will first find the prime factorization of 15520 and 15530. After we will calculate the factors of 15520 and 15530 and find the biggest common factor number .

Step-1: Prime Factorization of 15520

Prime factors of 15520 are 2, 5, 97. Prime factorization of 15520 in exponential form is:

15520 = 2⁵ × 5¹ × 97¹

Step-2: Prime Factorization of 15530

Prime factors of 15530 are 2, 5, 1553. Prime factorization of 15530 in exponential form is:

15530 = 2¹ × 5¹ × 1553¹

Step-3: Factors of 15520

List of positive integer factors of 15520 that divides 15520 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 3104, 3880, 7760

Step-4: Factors of 15530

List of positive integer factors of 15530 that divides 15520 without a remainder.

1, 2, 5, 10, 1553, 3106, 7765

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15520 and 15530. The biggest common factor number is the GCF number.
So the greatest common factor 15520 and 15530 is 10.

Also check out the Least Common Multiple of 15520 and 15530