What is the Greatest Common Factor of 25170 and 25185?

Greatest common factor (GCF) of 25170 and 25185 is 15.

GCF(25170,25185) = 15

We will now calculate the prime factors of 25170 and 25185, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 25170 and 25185.

How to find the GCF of 25170 and 25185?

We will first find the prime factorization of 25170 and 25185. After we will calculate the factors of 25170 and 25185 and find the biggest common factor number .

Step-1: Prime Factorization of 25170

Prime factors of 25170 are 2, 3, 5, 839. Prime factorization of 25170 in exponential form is:

25170 = 2¹ × 3¹ × 5¹ × 839¹

Step-2: Prime Factorization of 25185

Prime factors of 25185 are 3, 5, 23, 73. Prime factorization of 25185 in exponential form is:

25185 = 3¹ × 5¹ × 23¹ × 73¹

Step-3: Factors of 25170

List of positive integer factors of 25170 that divides 25170 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30, 839, 1678, 2517, 4195, 5034, 8390, 12585

Step-4: Factors of 25185

List of positive integer factors of 25185 that divides 25170 without a remainder.

1, 3, 5, 15, 23, 69, 73, 115, 219, 345, 365, 1095, 1679, 5037, 8395

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 25170 and 25185. The biggest common factor number is the GCF number.
So the greatest common factor 25170 and 25185 is 15.

Also check out the Least Common Multiple of 25170 and 25185