What is the Greatest Common Factor of 66740 and 66760?

Greatest common factor (GCF) of 66740 and 66760 is 20.

GCF(66740,66760) = 20

We will now calculate the prime factors of 66740 and 66760, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66740 and 66760.

How to find the GCF of 66740 and 66760?

We will first find the prime factorization of 66740 and 66760. After we will calculate the factors of 66740 and 66760 and find the biggest common factor number .

Step-1: Prime Factorization of 66740

Prime factors of 66740 are 2, 5, 47, 71. Prime factorization of 66740 in exponential form is:

66740 = 2² × 5¹ × 47¹ × 71¹

Step-2: Prime Factorization of 66760

Prime factors of 66760 are 2, 5, 1669. Prime factorization of 66760 in exponential form is:

66760 = 2³ × 5¹ × 1669¹

Step-3: Factors of 66740

List of positive integer factors of 66740 that divides 66740 without a remainder.

1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 235, 284, 355, 470, 710, 940, 1420, 3337, 6674, 13348, 16685, 33370

Step-4: Factors of 66760

List of positive integer factors of 66760 that divides 66740 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1669, 3338, 6676, 8345, 13352, 16690, 33380

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66740 and 66760. The biggest common factor number is the GCF number.
So the greatest common factor 66740 and 66760 is 20.

Also check out the Least Common Multiple of 66740 and 66760