What is the Greatest Common Factor of 15189 and 15207?

Greatest common factor (GCF) of 15189 and 15207 is 3.

GCF(15189,15207) = 3

We will now calculate the prime factors of 15189 and 15207, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15189 and 15207.

How to find the GCF of 15189 and 15207?

We will first find the prime factorization of 15189 and 15207. After we will calculate the factors of 15189 and 15207 and find the biggest common factor number .

Step-1: Prime Factorization of 15189

Prime factors of 15189 are 3, 61, 83. Prime factorization of 15189 in exponential form is:

15189 = 3¹ × 61¹ × 83¹

Step-2: Prime Factorization of 15207

Prime factors of 15207 are 3, 37, 137. Prime factorization of 15207 in exponential form is:

15207 = 3¹ × 37¹ × 137¹

Step-3: Factors of 15189

List of positive integer factors of 15189 that divides 15189 without a remainder.

1, 3, 61, 83, 183, 249, 5063

Step-4: Factors of 15207

List of positive integer factors of 15207 that divides 15189 without a remainder.

1, 3, 37, 111, 137, 411, 5069

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15189 and 15207. The biggest common factor number is the GCF number.
So the greatest common factor 15189 and 15207 is 3.

Also check out the Least Common Multiple of 15189 and 15207