What is the Greatest Common Factor of 27765 and 27770?

Greatest common factor (GCF) of 27765 and 27770 is 5.

GCF(27765,27770) = 5

We will now calculate the prime factors of 27765 and 27770, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27765 and 27770.

How to find the GCF of 27765 and 27770?

We will first find the prime factorization of 27765 and 27770. After we will calculate the factors of 27765 and 27770 and find the biggest common factor number .

Step-1: Prime Factorization of 27765

Prime factors of 27765 are 3, 5, 617. Prime factorization of 27765 in exponential form is:

27765 = 3² × 5¹ × 617¹

Step-2: Prime Factorization of 27770

Prime factors of 27770 are 2, 5, 2777. Prime factorization of 27770 in exponential form is:

27770 = 2¹ × 5¹ × 2777¹

Step-3: Factors of 27765

List of positive integer factors of 27765 that divides 27765 without a remainder.

1, 3, 5, 9, 15, 45, 617, 1851, 3085, 5553, 9255

Step-4: Factors of 27770

List of positive integer factors of 27770 that divides 27765 without a remainder.

1, 2, 5, 10, 2777, 5554, 13885

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27765 and 27770. The biggest common factor number is the GCF number.
So the greatest common factor 27765 and 27770 is 5.

Also check out the Least Common Multiple of 27765 and 27770