What is the Greatest Common Factor of 28780 and 28784?

Greatest common factor (GCF) of 28780 and 28784 is 4.

GCF(28780,28784) = 4

We will now calculate the prime factors of 28780 and 28784, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28780 and 28784.

How to find the GCF of 28780 and 28784?

We will first find the prime factorization of 28780 and 28784. After we will calculate the factors of 28780 and 28784 and find the biggest common factor number .

Step-1: Prime Factorization of 28780

Prime factors of 28780 are 2, 5, 1439. Prime factorization of 28780 in exponential form is:

28780 = 2² × 5¹ × 1439¹

Step-2: Prime Factorization of 28784

Prime factors of 28784 are 2, 7, 257. Prime factorization of 28784 in exponential form is:

28784 = 2⁴ × 7¹ × 257¹

Step-3: Factors of 28780

List of positive integer factors of 28780 that divides 28780 without a remainder.

1, 2, 4, 5, 10, 20, 1439, 2878, 5756, 7195, 14390

Step-4: Factors of 28784

List of positive integer factors of 28784 that divides 28780 without a remainder.

1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 257, 514, 1028, 1799, 2056, 3598, 4112, 7196, 14392

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28780 and 28784. The biggest common factor number is the GCF number.
So the greatest common factor 28780 and 28784 is 4.

Also check out the Least Common Multiple of 28780 and 28784