What is the Greatest Common Factor of 23130 and 23145?

Greatest common factor (GCF) of 23130 and 23145 is 15.

GCF(23130,23145) = 15

We will now calculate the prime factors of 23130 and 23145, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 23130 and 23145.

How to find the GCF of 23130 and 23145?

We will first find the prime factorization of 23130 and 23145. After we will calculate the factors of 23130 and 23145 and find the biggest common factor number .

Step-1: Prime Factorization of 23130

Prime factors of 23130 are 2, 3, 5, 257. Prime factorization of 23130 in exponential form is:

23130 = 2¹ × 3² × 5¹ × 257¹

Step-2: Prime Factorization of 23145

Prime factors of 23145 are 3, 5, 1543. Prime factorization of 23145 in exponential form is:

23145 = 3¹ × 5¹ × 1543¹

Step-3: Factors of 23130

List of positive integer factors of 23130 that divides 23130 without a remainder.

1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 257, 514, 771, 1285, 1542, 2313, 2570, 3855, 4626, 7710, 11565

Step-4: Factors of 23145

List of positive integer factors of 23145 that divides 23130 without a remainder.

1, 3, 5, 15, 1543, 4629, 7715

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 23130 and 23145. The biggest common factor number is the GCF number.
So the greatest common factor 23130 and 23145 is 15.

Also check out the Least Common Multiple of 23130 and 23145