What is the Greatest Common Factor of 66620 and 66639?

Greatest common factor (GCF) of 66620 and 66639 is 1.

GCF(66620,66639) = 1

We will now calculate the prime factors of 66620 and 66639, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66620 and 66639.

How to find the GCF of 66620 and 66639?

We will first find the prime factorization of 66620 and 66639. After we will calculate the factors of 66620 and 66639 and find the biggest common factor number .

Step-1: Prime Factorization of 66620

Prime factors of 66620 are 2, 5, 3331. Prime factorization of 66620 in exponential form is:

66620 = 2² × 5¹ × 3331¹

Step-2: Prime Factorization of 66639

Prime factors of 66639 are 3, 97, 229. Prime factorization of 66639 in exponential form is:

66639 = 3¹ × 97¹ × 229¹

Step-3: Factors of 66620

List of positive integer factors of 66620 that divides 66620 without a remainder.

1, 2, 4, 5, 10, 20, 3331, 6662, 13324, 16655, 33310

Step-4: Factors of 66639

List of positive integer factors of 66639 that divides 66620 without a remainder.

1, 3, 97, 229, 291, 687, 22213

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66620 and 66639. The biggest common factor number is the GCF number.
So the greatest common factor 66620 and 66639 is 1.

Also check out the Least Common Multiple of 66620 and 66639