What is the Greatest Common Factor of 28240 and 28255?

Greatest common factor (GCF) of 28240 and 28255 is 5.

GCF(28240,28255) = 5

We will now calculate the prime factors of 28240 and 28255, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28240 and 28255.

How to find the GCF of 28240 and 28255?

We will first find the prime factorization of 28240 and 28255. After we will calculate the factors of 28240 and 28255 and find the biggest common factor number .

Step-1: Prime Factorization of 28240

Prime factors of 28240 are 2, 5, 353. Prime factorization of 28240 in exponential form is:

28240 = 2⁴ × 5¹ × 353¹

Step-2: Prime Factorization of 28255

Prime factors of 28255 are 5, 5651. Prime factorization of 28255 in exponential form is:

28255 = 5¹ × 5651¹

Step-3: Factors of 28240

List of positive integer factors of 28240 that divides 28240 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 1412, 1765, 2824, 3530, 5648, 7060, 14120

Step-4: Factors of 28255

List of positive integer factors of 28255 that divides 28240 without a remainder.

1, 5, 5651

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28240 and 28255. The biggest common factor number is the GCF number.
So the greatest common factor 28240 and 28255 is 5.

Also check out the Least Common Multiple of 28240 and 28255