What is the Greatest Common Factor of 15549 and 15558?

Greatest common factor (GCF) of 15549 and 15558 is 3.

GCF(15549,15558) = 3

We will now calculate the prime factors of 15549 and 15558, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15549 and 15558.

How to find the GCF of 15549 and 15558?

We will first find the prime factorization of 15549 and 15558. After we will calculate the factors of 15549 and 15558 and find the biggest common factor number .

Step-1: Prime Factorization of 15549

Prime factors of 15549 are 3, 71, 73. Prime factorization of 15549 in exponential form is:

15549 = 3¹ × 71¹ × 73¹

Step-2: Prime Factorization of 15558

Prime factors of 15558 are 2, 3, 2593. Prime factorization of 15558 in exponential form is:

15558 = 2¹ × 3¹ × 2593¹

Step-3: Factors of 15549

List of positive integer factors of 15549 that divides 15549 without a remainder.

1, 3, 71, 73, 213, 219, 5183

Step-4: Factors of 15558

List of positive integer factors of 15558 that divides 15549 without a remainder.

1, 2, 3, 6, 2593, 5186, 7779

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15549 and 15558. The biggest common factor number is the GCF number.
So the greatest common factor 15549 and 15558 is 3.

Also check out the Least Common Multiple of 15549 and 15558