What is the Greatest Common Factor of 15516 and 15531?

Greatest common factor (GCF) of 15516 and 15531 is 3.

GCF(15516,15531) = 3

We will now calculate the prime factors of 15516 and 15531, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15516 and 15531.

How to find the GCF of 15516 and 15531?

We will first find the prime factorization of 15516 and 15531. After we will calculate the factors of 15516 and 15531 and find the biggest common factor number .

Step-1: Prime Factorization of 15516

Prime factors of 15516 are 2, 3, 431. Prime factorization of 15516 in exponential form is:

15516 = 2² × 3² × 431¹

Step-2: Prime Factorization of 15531

Prime factors of 15531 are 3, 31, 167. Prime factorization of 15531 in exponential form is:

15531 = 3¹ × 31¹ × 167¹

Step-3: Factors of 15516

List of positive integer factors of 15516 that divides 15516 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 431, 862, 1293, 1724, 2586, 3879, 5172, 7758

Step-4: Factors of 15531

List of positive integer factors of 15531 that divides 15516 without a remainder.

1, 3, 31, 93, 167, 501, 5177

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15516 and 15531. The biggest common factor number is the GCF number.
So the greatest common factor 15516 and 15531 is 3.

Also check out the Least Common Multiple of 15516 and 15531