What is the Greatest Common Factor of 68660 and 68680?

Greatest common factor (GCF) of 68660 and 68680 is 20.

GCF(68660,68680) = 20

We will now calculate the prime factors of 68660 and 68680, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68660 and 68680.

How to find the GCF of 68660 and 68680?

We will first find the prime factorization of 68660 and 68680. After we will calculate the factors of 68660 and 68680 and find the biggest common factor number .

Step-1: Prime Factorization of 68660

Prime factors of 68660 are 2, 5, 3433. Prime factorization of 68660 in exponential form is:

68660 = 2² × 5¹ × 3433¹

Step-2: Prime Factorization of 68680

Prime factors of 68680 are 2, 5, 17, 101. Prime factorization of 68680 in exponential form is:

68680 = 2³ × 5¹ × 17¹ × 101¹

Step-3: Factors of 68660

List of positive integer factors of 68660 that divides 68660 without a remainder.

1, 2, 4, 5, 10, 20, 3433, 6866, 13732, 17165, 34330

Step-4: Factors of 68680

List of positive integer factors of 68680 that divides 68660 without a remainder.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 101, 136, 170, 202, 340, 404, 505, 680, 808, 1010, 1717, 2020, 3434, 4040, 6868, 8585, 13736, 17170, 34340

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68660 and 68680. The biggest common factor number is the GCF number.
So the greatest common factor 68660 and 68680 is 20.

Also check out the Least Common Multiple of 68660 and 68680