What is the Greatest Common Factor of 78135 and 78147?

Greatest common factor (GCF) of 78135 and 78147 is 3.

GCF(78135,78147) = 3

We will now calculate the prime factors of 78135 and 78147, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78135 and 78147.

How to find the GCF of 78135 and 78147?

We will first find the prime factorization of 78135 and 78147. After we will calculate the factors of 78135 and 78147 and find the biggest common factor number .

Step-1: Prime Factorization of 78135

Prime factors of 78135 are 3, 5, 5209. Prime factorization of 78135 in exponential form is:

78135 = 3¹ × 5¹ × 5209¹

Step-2: Prime Factorization of 78147

Prime factors of 78147 are 3, 19, 457. Prime factorization of 78147 in exponential form is:

78147 = 3² × 19¹ × 457¹

Step-3: Factors of 78135

List of positive integer factors of 78135 that divides 78135 without a remainder.

1, 3, 5, 15, 5209, 15627, 26045

Step-4: Factors of 78147

List of positive integer factors of 78147 that divides 78135 without a remainder.

1, 3, 9, 19, 57, 171, 457, 1371, 4113, 8683, 26049

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78135 and 78147. The biggest common factor number is the GCF number.
So the greatest common factor 78135 and 78147 is 3.

Also check out the Least Common Multiple of 78135 and 78147