What is the Greatest Common Factor of 87147 and 87156?

Greatest common factor (GCF) of 87147 and 87156 is 9.

GCF(87147,87156) = 9

We will now calculate the prime factors of 87147 and 87156, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 87147 and 87156.

How to find the GCF of 87147 and 87156?

We will first find the prime factorization of 87147 and 87156. After we will calculate the factors of 87147 and 87156 and find the biggest common factor number .

Step-1: Prime Factorization of 87147

Prime factors of 87147 are 3, 23, 421. Prime factorization of 87147 in exponential form is:

87147 = 3² × 23¹ × 421¹

Step-2: Prime Factorization of 87156

Prime factors of 87156 are 2, 3, 269. Prime factorization of 87156 in exponential form is:

87156 = 2² × 3⁴ × 269¹

Step-3: Factors of 87147

List of positive integer factors of 87147 that divides 87147 without a remainder.

1, 3, 9, 23, 69, 207, 421, 1263, 3789, 9683, 29049

Step-4: Factors of 87156

List of positive integer factors of 87156 that divides 87147 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 269, 324, 538, 807, 1076, 1614, 2421, 3228, 4842, 7263, 9684, 14526, 21789, 29052, 43578

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 87147 and 87156. The biggest common factor number is the GCF number.
So the greatest common factor 87147 and 87156 is 9.

Also check out the Least Common Multiple of 87147 and 87156