What is the Greatest Common Factor of 66556 and 66564?

Greatest common factor (GCF) of 66556 and 66564 is 4.

GCF(66556,66564) = 4

We will now calculate the prime factors of 66556 and 66564, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66556 and 66564.

How to find the GCF of 66556 and 66564?

We will first find the prime factorization of 66556 and 66564. After we will calculate the factors of 66556 and 66564 and find the biggest common factor number .

Step-1: Prime Factorization of 66556

Prime factors of 66556 are 2, 7, 2377. Prime factorization of 66556 in exponential form is:

66556 = 2² × 7¹ × 2377¹

Step-2: Prime Factorization of 66564

Prime factors of 66564 are 2, 3, 43. Prime factorization of 66564 in exponential form is:

66564 = 2² × 3² × 43²

Step-3: Factors of 66556

List of positive integer factors of 66556 that divides 66556 without a remainder.

1, 2, 4, 7, 14, 28, 2377, 4754, 9508, 16639, 33278

Step-4: Factors of 66564

List of positive integer factors of 66564 that divides 66556 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 86, 129, 172, 258, 387, 516, 774, 1548, 1849, 3698, 5547, 7396, 11094, 16641, 22188, 33282

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66556 and 66564. The biggest common factor number is the GCF number.
So the greatest common factor 66556 and 66564 is 4.

Also check out the Least Common Multiple of 66556 and 66564