What is the Greatest Common Factor of 28855 and 28861?

Greatest common factor (GCF) of 28855 and 28861 is 1.

GCF(28855,28861) = 1

We will now calculate the prime factors of 28855 and 28861, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28855 and 28861.

How to find the GCF of 28855 and 28861?

We will first find the prime factorization of 28855 and 28861. After we will calculate the factors of 28855 and 28861 and find the biggest common factor number .

Step-1: Prime Factorization of 28855

Prime factors of 28855 are 5, 29, 199. Prime factorization of 28855 in exponential form is:

28855 = 5¹ × 29¹ × 199¹

Step-2: Prime Factorization of 28861

Prime factors of 28861 are 7, 19, 31. Prime factorization of 28861 in exponential form is:

28861 = 7² × 19¹ × 31¹

Step-3: Factors of 28855

List of positive integer factors of 28855 that divides 28855 without a remainder.

1, 5, 29, 145, 199, 995, 5771

Step-4: Factors of 28861

List of positive integer factors of 28861 that divides 28855 without a remainder.

1, 7, 19, 31, 49, 133, 217, 589, 931, 1519, 4123

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28855 and 28861. The biggest common factor number is the GCF number.
So the greatest common factor 28855 and 28861 is 1.

Also check out the Least Common Multiple of 28855 and 28861