What is the Greatest Common Factor of 9920 and 9928?

Greatest common factor (GCF) of 9920 and 9928 is 8.

GCF(9920,9928) = 8

We will now calculate the prime factors of 9920 and 9928, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9920 and 9928.

How to find the GCF of 9920 and 9928?

We will first find the prime factorization of 9920 and 9928. After we will calculate the factors of 9920 and 9928 and find the biggest common factor number .

Step-1: Prime Factorization of 9920

Prime factors of 9920 are 2, 5, 31. Prime factorization of 9920 in exponential form is:

9920 = 2⁶ × 5¹ × 31¹

Step-2: Prime Factorization of 9928

Prime factors of 9928 are 2, 17, 73. Prime factorization of 9928 in exponential form is:

9928 = 2³ × 17¹ × 73¹

Step-3: Factors of 9920

List of positive integer factors of 9920 that divides 9920 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960

Step-4: Factors of 9928

List of positive integer factors of 9928 that divides 9920 without a remainder.

1, 2, 4, 8, 17, 34, 68, 73, 136, 146, 292, 584, 1241, 2482, 4964

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9920 and 9928. The biggest common factor number is the GCF number.
So the greatest common factor 9920 and 9928 is 8.

Also check out the Least Common Multiple of 9920 and 9928