What is the Greatest Common Factor of 7128 and 7139?

Greatest common factor (GCF) of 7128 and 7139 is 11.

GCF(7128,7139) = 11

We will now calculate the prime factors of 7128 and 7139, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7128 and 7139.

How to find the GCF of 7128 and 7139?

We will first find the prime factorization of 7128 and 7139. After we will calculate the factors of 7128 and 7139 and find the biggest common factor number .

Step-1: Prime Factorization of 7128

Prime factors of 7128 are 2, 3, 11. Prime factorization of 7128 in exponential form is:

7128 = 2³ × 3⁴ × 11¹

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 7128

List of positive integer factors of 7128 that divides 7128 without a remainder.

1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 81, 88, 99, 108, 132, 162, 198, 216, 264, 297, 324, 396, 594, 648, 792, 891, 1188, 1782, 2376, 3564

Step-4: Factors of 7139

List of positive integer factors of 7139 that divides 7128 without a remainder.

1, 11, 59, 121, 649

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7128 and 7139. The biggest common factor number is the GCF number.
So the greatest common factor 7128 and 7139 is 11.

Also check out the Least Common Multiple of 7128 and 7139