What is the Greatest Common Factor of 11720 and 11728?

Greatest common factor (GCF) of 11720 and 11728 is 8.

GCF(11720,11728) = 8

We will now calculate the prime factors of 11720 and 11728, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11720 and 11728.

How to find the GCF of 11720 and 11728?

We will first find the prime factorization of 11720 and 11728. After we will calculate the factors of 11720 and 11728 and find the biggest common factor number .

Step-1: Prime Factorization of 11720

Prime factors of 11720 are 2, 5, 293. Prime factorization of 11720 in exponential form is:

11720 = 2³ × 5¹ × 293¹

Step-2: Prime Factorization of 11728

Prime factors of 11728 are 2, 733. Prime factorization of 11728 in exponential form is:

11728 = 2⁴ × 733¹

Step-3: Factors of 11720

List of positive integer factors of 11720 that divides 11720 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 293, 586, 1172, 1465, 2344, 2930, 5860

Step-4: Factors of 11728

List of positive integer factors of 11728 that divides 11720 without a remainder.

1, 2, 4, 8, 16, 733, 1466, 2932, 5864

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 11720 and 11728. The biggest common factor number is the GCF number.
So the greatest common factor 11720 and 11728 is 8.

Also check out the Least Common Multiple of 11720 and 11728