What is the Greatest Common Factor of 28345 and 28355?

Greatest common factor (GCF) of 28345 and 28355 is 5.

GCF(28345,28355) = 5

We will now calculate the prime factors of 28345 and 28355, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28345 and 28355.

How to find the GCF of 28345 and 28355?

We will first find the prime factorization of 28345 and 28355. After we will calculate the factors of 28345 and 28355 and find the biggest common factor number .

Step-1: Prime Factorization of 28345

Prime factors of 28345 are 5, 5669. Prime factorization of 28345 in exponential form is:

28345 = 5¹ × 5669¹

Step-2: Prime Factorization of 28355

Prime factors of 28355 are 5, 53, 107. Prime factorization of 28355 in exponential form is:

28355 = 5¹ × 53¹ × 107¹

Step-3: Factors of 28345

List of positive integer factors of 28345 that divides 28345 without a remainder.

1, 5, 5669

Step-4: Factors of 28355

List of positive integer factors of 28355 that divides 28345 without a remainder.

1, 5, 53, 107, 265, 535, 5671

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28345 and 28355. The biggest common factor number is the GCF number.
So the greatest common factor 28345 and 28355 is 5.

Also check out the Least Common Multiple of 28345 and 28355