What is the Greatest Common Factor of 27215 and 27220?

Greatest common factor (GCF) of 27215 and 27220 is 5.

GCF(27215,27220) = 5

We will now calculate the prime factors of 27215 and 27220, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27215 and 27220.

How to find the GCF of 27215 and 27220?

We will first find the prime factorization of 27215 and 27220. After we will calculate the factors of 27215 and 27220 and find the biggest common factor number .

Step-1: Prime Factorization of 27215

Prime factors of 27215 are 5, 5443. Prime factorization of 27215 in exponential form is:

27215 = 5¹ × 5443¹

Step-2: Prime Factorization of 27220

Prime factors of 27220 are 2, 5, 1361. Prime factorization of 27220 in exponential form is:

27220 = 2² × 5¹ × 1361¹

Step-3: Factors of 27215

List of positive integer factors of 27215 that divides 27215 without a remainder.

1, 5, 5443

Step-4: Factors of 27220

List of positive integer factors of 27220 that divides 27215 without a remainder.

1, 2, 4, 5, 10, 20, 1361, 2722, 5444, 6805, 13610

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27215 and 27220. The biggest common factor number is the GCF number.
So the greatest common factor 27215 and 27220 is 5.

Also check out the Least Common Multiple of 27215 and 27220