What is the Greatest Common Factor of 66123 and 66139?

Greatest common factor (GCF) of 66123 and 66139 is 1.

GCF(66123,66139) = 1

We will now calculate the prime factors of 66123 and 66139, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66123 and 66139.

How to find the GCF of 66123 and 66139?

We will first find the prime factorization of 66123 and 66139. After we will calculate the factors of 66123 and 66139 and find the biggest common factor number .

Step-1: Prime Factorization of 66123

Prime factors of 66123 are 3, 31, 79. Prime factorization of 66123 in exponential form is:

66123 = 3³ × 31¹ × 79¹

Step-2: Prime Factorization of 66139

Prime factors of 66139 are 19, 59. Prime factorization of 66139 in exponential form is:

66139 = 19¹ × 59²

Step-3: Factors of 66123

List of positive integer factors of 66123 that divides 66123 without a remainder.

1, 3, 9, 27, 31, 79, 93, 237, 279, 711, 837, 2133, 2449, 7347, 22041

Step-4: Factors of 66139

List of positive integer factors of 66139 that divides 66123 without a remainder.

1, 19, 59, 1121, 3481

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66123 and 66139. The biggest common factor number is the GCF number.
So the greatest common factor 66123 and 66139 is 1.

Also check out the Least Common Multiple of 66123 and 66139