What is the Greatest Common Factor of 28945 and 28955?

Greatest common factor (GCF) of 28945 and 28955 is 5.

GCF(28945,28955) = 5

We will now calculate the prime factors of 28945 and 28955, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 28945 and 28955.

How to find the GCF of 28945 and 28955?

We will first find the prime factorization of 28945 and 28955. After we will calculate the factors of 28945 and 28955 and find the biggest common factor number .

Step-1: Prime Factorization of 28945

Prime factors of 28945 are 5, 7, 827. Prime factorization of 28945 in exponential form is:

28945 = 5¹ × 7¹ × 827¹

Step-2: Prime Factorization of 28955

Prime factors of 28955 are 5, 5791. Prime factorization of 28955 in exponential form is:

28955 = 5¹ × 5791¹

Step-3: Factors of 28945

List of positive integer factors of 28945 that divides 28945 without a remainder.

1, 5, 7, 35, 827, 4135, 5789

Step-4: Factors of 28955

List of positive integer factors of 28955 that divides 28945 without a remainder.

1, 5, 5791

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 28945 and 28955. The biggest common factor number is the GCF number.
So the greatest common factor 28945 and 28955 is 5.

Also check out the Least Common Multiple of 28945 and 28955