What is the Greatest Common Factor of 78057 and 78066?

Greatest common factor (GCF) of 78057 and 78066 is 9.

GCF(78057,78066) = 9

We will now calculate the prime factors of 78057 and 78066, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78057 and 78066.

How to find the GCF of 78057 and 78066?

We will first find the prime factorization of 78057 and 78066. After we will calculate the factors of 78057 and 78066 and find the biggest common factor number .

Step-1: Prime Factorization of 78057

Prime factors of 78057 are 3, 7, 59. Prime factorization of 78057 in exponential form is:

78057 = 3³ × 7² × 59¹

Step-2: Prime Factorization of 78066

Prime factors of 78066 are 2, 3, 4337. Prime factorization of 78066 in exponential form is:

78066 = 2¹ × 3² × 4337¹

Step-3: Factors of 78057

List of positive integer factors of 78057 that divides 78057 without a remainder.

1, 3, 7, 9, 21, 27, 49, 59, 63, 147, 177, 189, 413, 441, 531, 1239, 1323, 1593, 2891, 3717, 8673, 11151, 26019

Step-4: Factors of 78066

List of positive integer factors of 78066 that divides 78057 without a remainder.

1, 2, 3, 6, 9, 18, 4337, 8674, 13011, 26022, 39033

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78057 and 78066. The biggest common factor number is the GCF number.
So the greatest common factor 78057 and 78066 is 9.

Also check out the Least Common Multiple of 78057 and 78066