What is the Greatest Common Factor of 66740 and 66755?

Greatest common factor (GCF) of 66740 and 66755 is 5.

GCF(66740,66755) = 5

We will now calculate the prime factors of 66740 and 66755, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66740 and 66755.

How to find the GCF of 66740 and 66755?

We will first find the prime factorization of 66740 and 66755. After we will calculate the factors of 66740 and 66755 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 66755

Prime factors of 66755 are 5, 13, 79. Prime factorization of 66755 in exponential form is:

66755 = 5¹ × 13² × 79¹

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 66755

List of positive integer factors of 66755 that divides 66740 without a remainder.

1, 5, 13, 65, 79, 169, 395, 845, 1027, 5135, 13351

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66740 and 66755. The biggest common factor number is the GCF number.
So the greatest common factor 66740 and 66755 is 5.

Also check out the Least Common Multiple of 66740 and 66755