What is the Greatest Common Factor of 66566 and 66580?

Greatest common factor (GCF) of 66566 and 66580 is 2.

GCF(66566,66580) = 2

We will now calculate the prime factors of 66566 and 66580, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66566 and 66580.

How to find the GCF of 66566 and 66580?

We will first find the prime factorization of 66566 and 66580. After we will calculate the factors of 66566 and 66580 and find the biggest common factor number .

Step-1: Prime Factorization of 66566

Prime factors of 66566 are 2, 83, 401. Prime factorization of 66566 in exponential form is:

66566 = 2¹ × 83¹ × 401¹

Step-2: Prime Factorization of 66580

Prime factors of 66580 are 2, 5, 3329. Prime factorization of 66580 in exponential form is:

66580 = 2² × 5¹ × 3329¹

Step-3: Factors of 66566

List of positive integer factors of 66566 that divides 66566 without a remainder.

1, 2, 83, 166, 401, 802, 33283

Step-4: Factors of 66580

List of positive integer factors of 66580 that divides 66566 without a remainder.

1, 2, 4, 5, 10, 20, 3329, 6658, 13316, 16645, 33290

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66566 and 66580. The biggest common factor number is the GCF number.
So the greatest common factor 66566 and 66580 is 2.

Also check out the Least Common Multiple of 66566 and 66580