What is the Greatest Common Factor of 39105 and 39125?

Greatest common factor (GCF) of 39105 and 39125 is 5.

GCF(39105,39125) = 5

We will now calculate the prime factors of 39105 and 39125, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 39105 and 39125.

How to find the GCF of 39105 and 39125?

We will first find the prime factorization of 39105 and 39125. After we will calculate the factors of 39105 and 39125 and find the biggest common factor number .

Step-1: Prime Factorization of 39105

Prime factors of 39105 are 3, 5, 11, 79. Prime factorization of 39105 in exponential form is:

39105 = 3² × 5¹ × 11¹ × 79¹

Step-2: Prime Factorization of 39125

Prime factors of 39125 are 5, 313. Prime factorization of 39125 in exponential form is:

39125 = 5³ × 313¹

Step-3: Factors of 39105

List of positive integer factors of 39105 that divides 39105 without a remainder.

1, 3, 5, 9, 11, 15, 33, 45, 55, 79, 99, 165, 237, 395, 495, 711, 869, 1185, 2607, 3555, 4345, 7821, 13035

Step-4: Factors of 39125

List of positive integer factors of 39125 that divides 39105 without a remainder.

1, 5, 25, 125, 313, 1565, 7825

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 39105 and 39125. The biggest common factor number is the GCF number.
So the greatest common factor 39105 and 39125 is 5.

Also check out the Least Common Multiple of 39105 and 39125