What is the Greatest Common Factor of 7664 and 7680?

Greatest common factor (GCF) of 7664 and 7680 is 16.

GCF(7664,7680) = 16

We will now calculate the prime factors of 7664 and 7680, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 7664 and 7680.

How to find the GCF of 7664 and 7680?

We will first find the prime factorization of 7664 and 7680. After we will calculate the factors of 7664 and 7680 and find the biggest common factor number .

Step-1: Prime Factorization of 7664

Prime factors of 7664 are 2, 479. Prime factorization of 7664 in exponential form is:

7664 = 2⁴ × 479¹

Step-2: Prime Factorization of 7680

Prime factors of 7680 are 2, 3, 5. Prime factorization of 7680 in exponential form is:

7680 = 2⁹ × 3¹ × 5¹

Step-3: Factors of 7664

List of positive integer factors of 7664 that divides 7664 without a remainder.

1, 2, 4, 8, 16, 479, 958, 1916, 3832

Step-4: Factors of 7680

List of positive integer factors of 7680 that divides 7664 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 512, 640, 768, 960, 1280, 1536, 1920, 2560, 3840

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 7664 and 7680. The biggest common factor number is the GCF number.
So the greatest common factor 7664 and 7680 is 16.

Also check out the Least Common Multiple of 7664 and 7680