What is the Greatest Common Factor of 72845 and 72855?

Greatest common factor (GCF) of 72845 and 72855 is 5.

GCF(72845,72855) = 5

We will now calculate the prime factors of 72845 and 72855, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 72845 and 72855.

How to find the GCF of 72845 and 72855?

We will first find the prime factorization of 72845 and 72855. After we will calculate the factors of 72845 and 72855 and find the biggest common factor number .

Step-1: Prime Factorization of 72845

Prime factors of 72845 are 5, 17, 857. Prime factorization of 72845 in exponential form is:

72845 = 5¹ × 17¹ × 857¹

Step-2: Prime Factorization of 72855

Prime factors of 72855 are 3, 5, 1619. Prime factorization of 72855 in exponential form is:

72855 = 3² × 5¹ × 1619¹

Step-3: Factors of 72845

List of positive integer factors of 72845 that divides 72845 without a remainder.

1, 5, 17, 85, 857, 4285, 14569

Step-4: Factors of 72855

List of positive integer factors of 72855 that divides 72845 without a remainder.

1, 3, 5, 9, 15, 45, 1619, 4857, 8095, 14571, 24285

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 72845 and 72855. The biggest common factor number is the GCF number.
So the greatest common factor 72845 and 72855 is 5.

Also check out the Least Common Multiple of 72845 and 72855