What is the Greatest Common Factor of 8706 and 8721?

Greatest common factor (GCF) of 8706 and 8721 is 3.

GCF(8706,8721) = 3

We will now calculate the prime factors of 8706 and 8721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8706 and 8721.

How to find the GCF of 8706 and 8721?

We will first find the prime factorization of 8706 and 8721. After we will calculate the factors of 8706 and 8721 and find the biggest common factor number .

Step-1: Prime Factorization of 8706

Prime factors of 8706 are 2, 3, 1451. Prime factorization of 8706 in exponential form is:

8706 = 2¹ × 3¹ × 1451¹

Step-2: Prime Factorization of 8721

Prime factors of 8721 are 3, 17, 19. Prime factorization of 8721 in exponential form is:

8721 = 3³ × 17¹ × 19¹

Step-3: Factors of 8706

List of positive integer factors of 8706 that divides 8706 without a remainder.

1, 2, 3, 6, 1451, 2902, 4353

Step-4: Factors of 8721

List of positive integer factors of 8721 that divides 8706 without a remainder.

1, 3, 9, 17, 19, 27, 51, 57, 153, 171, 323, 459, 513, 969, 2907

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8706 and 8721. The biggest common factor number is the GCF number.
So the greatest common factor 8706 and 8721 is 3.

Also check out the Least Common Multiple of 8706 and 8721