What is the Greatest Common Factor of 30580 and 30585?

Greatest common factor (GCF) of 30580 and 30585 is 5.

GCF(30580,30585) = 5

We will now calculate the prime factors of 30580 and 30585, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 30580 and 30585.

How to find the GCF of 30580 and 30585?

We will first find the prime factorization of 30580 and 30585. After we will calculate the factors of 30580 and 30585 and find the biggest common factor number .

Step-1: Prime Factorization of 30580

Prime factors of 30580 are 2, 5, 11, 139. Prime factorization of 30580 in exponential form is:

30580 = 2² × 5¹ × 11¹ × 139¹

Step-2: Prime Factorization of 30585

Prime factors of 30585 are 3, 5, 2039. Prime factorization of 30585 in exponential form is:

30585 = 3¹ × 5¹ × 2039¹

Step-3: Factors of 30580

List of positive integer factors of 30580 that divides 30580 without a remainder.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1390, 1529, 2780, 3058, 6116, 7645, 15290

Step-4: Factors of 30585

List of positive integer factors of 30585 that divides 30580 without a remainder.

1, 3, 5, 15, 2039, 6117, 10195

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 30580 and 30585. The biggest common factor number is the GCF number.
So the greatest common factor 30580 and 30585 is 5.

Also check out the Least Common Multiple of 30580 and 30585