What is the Greatest Common Factor of 66580 and 66590?

Greatest common factor (GCF) of 66580 and 66590 is 10.

GCF(66580,66590) = 10

We will now calculate the prime factors of 66580 and 66590, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66580 and 66590.

How to find the GCF of 66580 and 66590?

We will first find the prime factorization of 66580 and 66590. After we will calculate the factors of 66580 and 66590 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 66590

Prime factors of 66590 are 2, 5, 6659. Prime factorization of 66590 in exponential form is:

66590 = 2¹ × 5¹ × 6659¹

Step-3: Factors of 66580

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

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

Step-4: Factors of 66590

List of positive integer factors of 66590 that divides 66580 without a remainder.

1, 2, 5, 10, 6659, 13318, 33295

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66580 and 66590. The biggest common factor number is the GCF number.
So the greatest common factor 66580 and 66590 is 10.

Also check out the Least Common Multiple of 66580 and 66590