What is the Greatest Common Factor of 27420 and 27430?

Greatest common factor (GCF) of 27420 and 27430 is 10.

GCF(27420,27430) = 10

We will now calculate the prime factors of 27420 and 27430, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27420 and 27430.

How to find the GCF of 27420 and 27430?

We will first find the prime factorization of 27420 and 27430. After we will calculate the factors of 27420 and 27430 and find the biggest common factor number .

Step-1: Prime Factorization of 27420

Prime factors of 27420 are 2, 3, 5, 457. Prime factorization of 27420 in exponential form is:

27420 = 2² × 3¹ × 5¹ × 457¹

Step-2: Prime Factorization of 27430

Prime factors of 27430 are 2, 5, 13, 211. Prime factorization of 27430 in exponential form is:

27430 = 2¹ × 5¹ × 13¹ × 211¹

Step-3: Factors of 27420

List of positive integer factors of 27420 that divides 27420 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 457, 914, 1371, 1828, 2285, 2742, 4570, 5484, 6855, 9140, 13710

Step-4: Factors of 27430

List of positive integer factors of 27430 that divides 27420 without a remainder.

1, 2, 5, 10, 13, 26, 65, 130, 211, 422, 1055, 2110, 2743, 5486, 13715

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27420 and 27430. The biggest common factor number is the GCF number.
So the greatest common factor 27420 and 27430 is 10.

Also check out the Least Common Multiple of 27420 and 27430