What is the Greatest Common Factor of 28773 and 28782?

Greatest common factor (GCF) of 28773 and 28782 is 9.

GCF(28773,28782) = 9

We will now calculate the prime factors of 28773 and 28782, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28773 and 28782.

How to find the GCF of 28773 and 28782?

We will first find the prime factorization of 28773 and 28782. After we will calculate the factors of 28773 and 28782 and find the biggest common factor number .

Step-1: Prime Factorization of 28773

Prime factors of 28773 are 3, 23, 139. Prime factorization of 28773 in exponential form is:

28773 = 3² × 23¹ × 139¹

Step-2: Prime Factorization of 28782

Prime factors of 28782 are 2, 3, 13, 41. Prime factorization of 28782 in exponential form is:

28782 = 2¹ × 3³ × 13¹ × 41¹

Step-3: Factors of 28773

List of positive integer factors of 28773 that divides 28773 without a remainder.

1, 3, 9, 23, 69, 139, 207, 417, 1251, 3197, 9591

Step-4: Factors of 28782

List of positive integer factors of 28782 that divides 28773 without a remainder.

1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 41, 54, 78, 82, 117, 123, 234, 246, 351, 369, 533, 702, 738, 1066, 1107, 1599, 2214, 3198, 4797, 9594, 14391

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28773 and 28782. The biggest common factor number is the GCF number.
So the greatest common factor 28773 and 28782 is 9.

Also check out the Least Common Multiple of 28773 and 28782