What is the Greatest Common Factor of 28040 and 28055?

Greatest common factor (GCF) of 28040 and 28055 is 5.

GCF(28040,28055) = 5

We will now calculate the prime factors of 28040 and 28055, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28040 and 28055.

How to find the GCF of 28040 and 28055?

We will first find the prime factorization of 28040 and 28055. After we will calculate the factors of 28040 and 28055 and find the biggest common factor number .

Step-1: Prime Factorization of 28040

Prime factors of 28040 are 2, 5, 701. Prime factorization of 28040 in exponential form is:

28040 = 2³ × 5¹ × 701¹

Step-2: Prime Factorization of 28055

Prime factors of 28055 are 5, 31, 181. Prime factorization of 28055 in exponential form is:

28055 = 5¹ × 31¹ × 181¹

Step-3: Factors of 28040

List of positive integer factors of 28040 that divides 28040 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 701, 1402, 2804, 3505, 5608, 7010, 14020

Step-4: Factors of 28055

List of positive integer factors of 28055 that divides 28040 without a remainder.

1, 5, 31, 155, 181, 905, 5611

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28040 and 28055. The biggest common factor number is the GCF number.
So the greatest common factor 28040 and 28055 is 5.

Also check out the Least Common Multiple of 28040 and 28055