What is the Greatest Common Factor of 28678 and 28686?

Greatest common factor (GCF) of 28678 and 28686 is 2.

GCF(28678,28686) = 2

We will now calculate the prime factors of 28678 and 28686, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28678 and 28686.

How to find the GCF of 28678 and 28686?

We will first find the prime factorization of 28678 and 28686. After we will calculate the factors of 28678 and 28686 and find the biggest common factor number .

Step-1: Prime Factorization of 28678

Prime factors of 28678 are 2, 13, 1103. Prime factorization of 28678 in exponential form is:

28678 = 2¹ × 13¹ × 1103¹

Step-2: Prime Factorization of 28686

Prime factors of 28686 are 2, 3, 7, 683. Prime factorization of 28686 in exponential form is:

28686 = 2¹ × 3¹ × 7¹ × 683¹

Step-3: Factors of 28678

List of positive integer factors of 28678 that divides 28678 without a remainder.

1, 2, 13, 26, 1103, 2206, 14339

Step-4: Factors of 28686

List of positive integer factors of 28686 that divides 28678 without a remainder.

1, 2, 3, 6, 7, 14, 21, 42, 683, 1366, 2049, 4098, 4781, 9562, 14343

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28678 and 28686. The biggest common factor number is the GCF number.
So the greatest common factor 28678 and 28686 is 2.

Also check out the Least Common Multiple of 28678 and 28686