What is the Greatest Common Factor of 27605 and 27620?

Greatest common factor (GCF) of 27605 and 27620 is 5.

GCF(27605,27620) = 5

We will now calculate the prime factors of 27605 and 27620, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27605 and 27620.

How to find the GCF of 27605 and 27620?

We will first find the prime factorization of 27605 and 27620. After we will calculate the factors of 27605 and 27620 and find the biggest common factor number .

Step-1: Prime Factorization of 27605

Prime factors of 27605 are 5, 5521. Prime factorization of 27605 in exponential form is:

27605 = 5¹ × 5521¹

Step-2: Prime Factorization of 27620

Prime factors of 27620 are 2, 5, 1381. Prime factorization of 27620 in exponential form is:

27620 = 2² × 5¹ × 1381¹

Step-3: Factors of 27605

List of positive integer factors of 27605 that divides 27605 without a remainder.

1, 5, 5521

Step-4: Factors of 27620

List of positive integer factors of 27620 that divides 27605 without a remainder.

1, 2, 4, 5, 10, 20, 1381, 2762, 5524, 6905, 13810

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27605 and 27620. The biggest common factor number is the GCF number.
So the greatest common factor 27605 and 27620 is 5.

Also check out the Least Common Multiple of 27605 and 27620