What is the Greatest Common Factor of 78728 and 78732?

Greatest common factor (GCF) of 78728 and 78732 is 4.

GCF(78728,78732) = 4

We will now calculate the prime factors of 78728 and 78732, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 78728 and 78732.

How to find the GCF of 78728 and 78732?

We will first find the prime factorization of 78728 and 78732. After we will calculate the factors of 78728 and 78732 and find the biggest common factor number .

Step-1: Prime Factorization of 78728

Prime factors of 78728 are 2, 13, 757. Prime factorization of 78728 in exponential form is:

78728 = 2³ × 13¹ × 757¹

Step-2: Prime Factorization of 78732

Prime factors of 78732 are 2, 3. Prime factorization of 78732 in exponential form is:

78732 = 2² × 3⁹

Step-3: Factors of 78728

List of positive integer factors of 78728 that divides 78728 without a remainder.

1, 2, 4, 8, 13, 26, 52, 104, 757, 1514, 3028, 6056, 9841, 19682, 39364

Step-4: Factors of 78732

List of positive integer factors of 78732 that divides 78728 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 729, 972, 1458, 2187, 2916, 4374, 6561, 8748, 13122, 19683, 26244, 39366

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 78728 and 78732. The biggest common factor number is the GCF number.
So the greatest common factor 78728 and 78732 is 4.

Also check out the Least Common Multiple of 78728 and 78732