What is the Greatest Common Factor of 20580 and 20591?

Greatest common factor (GCF) of 20580 and 20591 is 1.

GCF(20580,20591) = 1

We will now calculate the prime factors of 20580 and 20591, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20580 and 20591.

How to find the GCF of 20580 and 20591?

We will first find the prime factorization of 20580 and 20591. After we will calculate the factors of 20580 and 20591 and find the biggest common factor number .

Step-1: Prime Factorization of 20580

Prime factors of 20580 are 2, 3, 5, 7. Prime factorization of 20580 in exponential form is:

20580 = 2² × 3¹ × 5¹ × 7³

Step-2: Prime Factorization of 20591

Prime factors of 20591 are 59, 349. Prime factorization of 20591 in exponential form is:

20591 = 59¹ × 349¹

Step-3: Factors of 20580

List of positive integer factors of 20580 that divides 20580 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 980, 1029, 1372, 1470, 1715, 2058, 2940, 3430, 4116, 5145, 6860, 10290

Step-4: Factors of 20591

List of positive integer factors of 20591 that divides 20580 without a remainder.

1, 59, 349

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20580 and 20591. The biggest common factor number is the GCF number.
So the greatest common factor 20580 and 20591 is 1.

Also check out the Least Common Multiple of 20580 and 20591