What is the Greatest Common Factor of 28329 and 28338?

Greatest common factor (GCF) of 28329 and 28338 is 3.

GCF(28329,28338) = 3

We will now calculate the prime factors of 28329 and 28338, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28329 and 28338.

How to find the GCF of 28329 and 28338?

We will first find the prime factorization of 28329 and 28338. After we will calculate the factors of 28329 and 28338 and find the biggest common factor number .

Step-1: Prime Factorization of 28329

Prime factors of 28329 are 3, 7, 19, 71. Prime factorization of 28329 in exponential form is:

28329 = 3¹ × 7¹ × 19¹ × 71¹

Step-2: Prime Factorization of 28338

Prime factors of 28338 are 2, 3, 4723. Prime factorization of 28338 in exponential form is:

28338 = 2¹ × 3¹ × 4723¹

Step-3: Factors of 28329

List of positive integer factors of 28329 that divides 28329 without a remainder.

1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1349, 1491, 4047, 9443

Step-4: Factors of 28338

List of positive integer factors of 28338 that divides 28329 without a remainder.

1, 2, 3, 6, 4723, 9446, 14169

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28329 and 28338. The biggest common factor number is the GCF number.
So the greatest common factor 28329 and 28338 is 3.

Also check out the Least Common Multiple of 28329 and 28338