What is the Greatest Common Factor of 23130 and 23139?

Greatest common factor (GCF) of 23130 and 23139 is 9.

GCF(23130,23139) = 9

We will now calculate the prime factors of 23130 and 23139, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 23130 and 23139.

How to find the GCF of 23130 and 23139?

We will first find the prime factorization of 23130 and 23139. After we will calculate the factors of 23130 and 23139 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 23139

Prime factors of 23139 are 3, 857. Prime factorization of 23139 in exponential form is:

23139 = 3³ × 857¹

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 23139

List of positive integer factors of 23139 that divides 23130 without a remainder.

1, 3, 9, 27, 857, 2571, 7713

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 23130 and 23139. The biggest common factor number is the GCF number.
So the greatest common factor 23130 and 23139 is 9.

Also check out the Least Common Multiple of 23130 and 23139