What is the Greatest Common Factor of 18156 and 18171?

Greatest common factor (GCF) of 18156 and 18171 is 3.

GCF(18156,18171) = 3

We will now calculate the prime factors of 18156 and 18171, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18156 and 18171.

How to find the GCF of 18156 and 18171?

We will first find the prime factorization of 18156 and 18171. After we will calculate the factors of 18156 and 18171 and find the biggest common factor number .

Step-1: Prime Factorization of 18156

Prime factors of 18156 are 2, 3, 17, 89. Prime factorization of 18156 in exponential form is:

18156 = 2² × 3¹ × 17¹ × 89¹

Step-2: Prime Factorization of 18171

Prime factors of 18171 are 3, 673. Prime factorization of 18171 in exponential form is:

18171 = 3³ × 673¹

Step-3: Factors of 18156

List of positive integer factors of 18156 that divides 18156 without a remainder.

1, 2, 3, 4, 6, 12, 17, 34, 51, 68, 89, 102, 178, 204, 267, 356, 534, 1068, 1513, 3026, 4539, 6052, 9078

Step-4: Factors of 18171

List of positive integer factors of 18171 that divides 18156 without a remainder.

1, 3, 9, 27, 673, 2019, 6057

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18156 and 18171. The biggest common factor number is the GCF number.
So the greatest common factor 18156 and 18171 is 3.

Also check out the Least Common Multiple of 18156 and 18171