What is the Greatest Common Factor of 15585 and 15590?

Greatest common factor (GCF) of 15585 and 15590 is 5.

GCF(15585,15590) = 5

We will now calculate the prime factors of 15585 and 15590, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15585 and 15590.

How to find the GCF of 15585 and 15590?

We will first find the prime factorization of 15585 and 15590. After we will calculate the factors of 15585 and 15590 and find the biggest common factor number .

Step-1: Prime Factorization of 15585

Prime factors of 15585 are 3, 5, 1039. Prime factorization of 15585 in exponential form is:

15585 = 3¹ × 5¹ × 1039¹

Step-2: Prime Factorization of 15590

Prime factors of 15590 are 2, 5, 1559. Prime factorization of 15590 in exponential form is:

15590 = 2¹ × 5¹ × 1559¹

Step-3: Factors of 15585

List of positive integer factors of 15585 that divides 15585 without a remainder.

1, 3, 5, 15, 1039, 3117, 5195

Step-4: Factors of 15590

List of positive integer factors of 15590 that divides 15585 without a remainder.

1, 2, 5, 10, 1559, 3118, 7795

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15585 and 15590. The biggest common factor number is the GCF number.
So the greatest common factor 15585 and 15590 is 5.

Also check out the Least Common Multiple of 15585 and 15590