What is the Greatest Common Factor of 27970 and 27981?

Greatest common factor (GCF) of 27970 and 27981 is 1.

GCF(27970,27981) = 1

We will now calculate the prime factors of 27970 and 27981, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 27970 and 27981.

How to find the GCF of 27970 and 27981?

We will first find the prime factorization of 27970 and 27981. After we will calculate the factors of 27970 and 27981 and find the biggest common factor number .

Step-1: Prime Factorization of 27970

Prime factors of 27970 are 2, 5, 2797. Prime factorization of 27970 in exponential form is:

27970 = 2¹ × 5¹ × 2797¹

Step-2: Prime Factorization of 27981

Prime factors of 27981 are 3, 3109. Prime factorization of 27981 in exponential form is:

27981 = 3² × 3109¹

Step-3: Factors of 27970

List of positive integer factors of 27970 that divides 27970 without a remainder.

1, 2, 5, 10, 2797, 5594, 13985

Step-4: Factors of 27981

List of positive integer factors of 27981 that divides 27970 without a remainder.

1, 3, 9, 3109, 9327

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 27970 and 27981. The biggest common factor number is the GCF number.
So the greatest common factor 27970 and 27981 is 1.

Also check out the Least Common Multiple of 27970 and 27981