What is the Greatest Common Factor of 28781 and 28798?

Greatest common factor (GCF) of 28781 and 28798 is 17.

GCF(28781,28798) = 17

We will now calculate the prime factors of 28781 and 28798, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28781 and 28798.

How to find the GCF of 28781 and 28798?

We will first find the prime factorization of 28781 and 28798. After we will calculate the factors of 28781 and 28798 and find the biggest common factor number .

Step-1: Prime Factorization of 28781

Prime factors of 28781 are 17, 1693. Prime factorization of 28781 in exponential form is:

28781 = 17¹ × 1693¹

Step-2: Prime Factorization of 28798

Prime factors of 28798 are 2, 7, 11, 17. Prime factorization of 28798 in exponential form is:

28798 = 2¹ × 7¹ × 11² × 17¹

Step-3: Factors of 28781

List of positive integer factors of 28781 that divides 28781 without a remainder.

1, 17, 1693

Step-4: Factors of 28798

List of positive integer factors of 28798 that divides 28781 without a remainder.

1, 2, 7, 11, 14, 17, 22, 34, 77, 119, 121, 154, 187, 238, 242, 374, 847, 1309, 1694, 2057, 2618, 4114, 14399

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28781 and 28798. The biggest common factor number is the GCF number.
So the greatest common factor 28781 and 28798 is 17.

Also check out the Least Common Multiple of 28781 and 28798