What is the Greatest Common Factor of 7123 and 7139?

Greatest common factor (GCF) of 7123 and 7139 is 1.

GCF(7123,7139) = 1

We will now calculate the prime factors of 7123 and 7139, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7123 and 7139.

How to find the GCF of 7123 and 7139?

We will first find the prime factorization of 7123 and 7139. After we will calculate the factors of 7123 and 7139 and find the biggest common factor number .

Step-1: Prime Factorization of 7123

Prime factors of 7123 are 17, 419. Prime factorization of 7123 in exponential form is:

7123 = 17¹ × 419¹

Step-2: Prime Factorization of 7139

Prime factors of 7139 are 11, 59. Prime factorization of 7139 in exponential form is:

7139 = 11² × 59¹

Step-3: Factors of 7123

List of positive integer factors of 7123 that divides 7123 without a remainder.

1, 17, 419

Step-4: Factors of 7139

List of positive integer factors of 7139 that divides 7123 without a remainder.

1, 11, 59, 121, 649

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7123 and 7139. The biggest common factor number is the GCF number.
So the greatest common factor 7123 and 7139 is 1.

Also check out the Least Common Multiple of 7123 and 7139