What is the Greatest Common Factor of 81660 and 81672?

Greatest common factor (GCF) of 81660 and 81672 is 12.

GCF(81660,81672) = 12

We will now calculate the prime factors of 81660 and 81672, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 81660 and 81672.

How to find the GCF of 81660 and 81672?

We will first find the prime factorization of 81660 and 81672. After we will calculate the factors of 81660 and 81672 and find the biggest common factor number .

Step-1: Prime Factorization of 81660

Prime factors of 81660 are 2, 3, 5, 1361. Prime factorization of 81660 in exponential form is:

81660 = 2² × 3¹ × 5¹ × 1361¹

Step-2: Prime Factorization of 81672

Prime factors of 81672 are 2, 3, 41, 83. Prime factorization of 81672 in exponential form is:

81672 = 2³ × 3¹ × 41¹ × 83¹

Step-3: Factors of 81660

List of positive integer factors of 81660 that divides 81660 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1361, 2722, 4083, 5444, 6805, 8166, 13610, 16332, 20415, 27220, 40830

Step-4: Factors of 81672

List of positive integer factors of 81672 that divides 81660 without a remainder.

1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 83, 123, 164, 166, 246, 249, 328, 332, 492, 498, 664, 984, 996, 1992, 3403, 6806, 10209, 13612, 20418, 27224, 40836

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 81660 and 81672. The biggest common factor number is the GCF number.
So the greatest common factor 81660 and 81672 is 12.

Also check out the Least Common Multiple of 81660 and 81672