What is the Greatest Common Factor of 66728 and 66747?

Greatest common factor (GCF) of 66728 and 66747 is 19.

GCF(66728,66747) = 19

We will now calculate the prime factors of 66728 and 66747, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 66728 and 66747.

How to find the GCF of 66728 and 66747?

We will first find the prime factorization of 66728 and 66747. After we will calculate the factors of 66728 and 66747 and find the biggest common factor number .

Step-1: Prime Factorization of 66728

Prime factors of 66728 are 2, 19, 439. Prime factorization of 66728 in exponential form is:

66728 = 2³ × 19¹ × 439¹

Step-2: Prime Factorization of 66747

Prime factors of 66747 are 3, 19, 1171. Prime factorization of 66747 in exponential form is:

66747 = 3¹ × 19¹ × 1171¹

Step-3: Factors of 66728

List of positive integer factors of 66728 that divides 66728 without a remainder.

1, 2, 4, 8, 19, 38, 76, 152, 439, 878, 1756, 3512, 8341, 16682, 33364

Step-4: Factors of 66747

List of positive integer factors of 66747 that divides 66728 without a remainder.

1, 3, 19, 57, 1171, 3513, 22249

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 66728 and 66747. The biggest common factor number is the GCF number.
So the greatest common factor 66728 and 66747 is 19.

Also check out the Least Common Multiple of 66728 and 66747