What is the Greatest Common Factor of 28543 and 28556?

Greatest common factor (GCF) of 28543 and 28556 is 1.

GCF(28543,28556) = 1

We will now calculate the prime factors of 28543 and 28556, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28543 and 28556.

How to find the GCF of 28543 and 28556?

We will first find the prime factorization of 28543 and 28556. After we will calculate the factors of 28543 and 28556 and find the biggest common factor number .

Step-1: Prime Factorization of 28543

Prime factors of 28543 are 17, 23, 73. Prime factorization of 28543 in exponential form is:

28543 = 17¹ × 23¹ × 73¹

Step-2: Prime Factorization of 28556

Prime factors of 28556 are 2, 11, 59. Prime factorization of 28556 in exponential form is:

28556 = 2² × 11² × 59¹

Step-3: Factors of 28543

List of positive integer factors of 28543 that divides 28543 without a remainder.

1, 17, 23, 73, 391, 1241, 1679

Step-4: Factors of 28556

List of positive integer factors of 28556 that divides 28543 without a remainder.

1, 2, 4, 11, 22, 44, 59, 118, 121, 236, 242, 484, 649, 1298, 2596, 7139, 14278

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28543 and 28556. The biggest common factor number is the GCF number.
So the greatest common factor 28543 and 28556 is 1.

Also check out the Least Common Multiple of 28543 and 28556