What is the Greatest Common Factor of 39165 and 39180?

Greatest common factor (GCF) of 39165 and 39180 is 15.

GCF(39165,39180) = 15

We will now calculate the prime factors of 39165 and 39180, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39165 and 39180.

How to find the GCF of 39165 and 39180?

We will first find the prime factorization of 39165 and 39180. After we will calculate the factors of 39165 and 39180 and find the biggest common factor number .

Step-1: Prime Factorization of 39165

Prime factors of 39165 are 3, 5, 7, 373. Prime factorization of 39165 in exponential form is:

39165 = 3¹ × 5¹ × 7¹ × 373¹

Step-2: Prime Factorization of 39180

Prime factors of 39180 are 2, 3, 5, 653. Prime factorization of 39180 in exponential form is:

39180 = 2² × 3¹ × 5¹ × 653¹

Step-3: Factors of 39165

List of positive integer factors of 39165 that divides 39165 without a remainder.

1, 3, 5, 7, 15, 21, 35, 105, 373, 1119, 1865, 2611, 5595, 7833, 13055

Step-4: Factors of 39180

List of positive integer factors of 39180 that divides 39165 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 653, 1306, 1959, 2612, 3265, 3918, 6530, 7836, 9795, 13060, 19590

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39165 and 39180. The biggest common factor number is the GCF number.
So the greatest common factor 39165 and 39180 is 15.

Also check out the Least Common Multiple of 39165 and 39180