What is the Greatest Common Factor of 67660 and 67664?

Greatest common factor (GCF) of 67660 and 67664 is 4.

GCF(67660,67664) = 4

We will now calculate the prime factors of 67660 and 67664, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 67660 and 67664.

How to find the GCF of 67660 and 67664?

We will first find the prime factorization of 67660 and 67664. After we will calculate the factors of 67660 and 67664 and find the biggest common factor number .

Step-1: Prime Factorization of 67660

Prime factors of 67660 are 2, 5, 17, 199. Prime factorization of 67660 in exponential form is:

67660 = 2² × 5¹ × 17¹ × 199¹

Step-2: Prime Factorization of 67664

Prime factors of 67664 are 2, 4229. Prime factorization of 67664 in exponential form is:

67664 = 2⁴ × 4229¹

Step-3: Factors of 67660

List of positive integer factors of 67660 that divides 67660 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 199, 340, 398, 796, 995, 1990, 3383, 3980, 6766, 13532, 16915, 33830

Step-4: Factors of 67664

List of positive integer factors of 67664 that divides 67660 without a remainder.

1, 2, 4, 8, 16, 4229, 8458, 16916, 33832

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 67660 and 67664. The biggest common factor number is the GCF number.
So the greatest common factor 67660 and 67664 is 4.

Also check out the Least Common Multiple of 67660 and 67664