What is the Greatest Common Factor of 18147 and 18156?

Greatest common factor (GCF) of 18147 and 18156 is 3.

GCF(18147,18156) = 3

We will now calculate the prime factors of 18147 and 18156, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 18147 and 18156.

How to find the GCF of 18147 and 18156?

We will first find the prime factorization of 18147 and 18156. After we will calculate the factors of 18147 and 18156 and find the biggest common factor number .

Step-1: Prime Factorization of 18147

Prime factors of 18147 are 3, 23, 263. Prime factorization of 18147 in exponential form is:

18147 = 3¹ × 23¹ × 263¹

Step-2: 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-3: Factors of 18147

List of positive integer factors of 18147 that divides 18147 without a remainder.

1, 3, 23, 69, 263, 789, 6049

Step-4: Factors of 18156

List of positive integer factors of 18156 that divides 18147 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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 18147 and 18156. The biggest common factor number is the GCF number.
So the greatest common factor 18147 and 18156 is 3.

Also check out the Least Common Multiple of 18147 and 18156