What is the Greatest Common Factor of 57981 and 57987?

Greatest common factor (GCF) of 57981 and 57987 is 3.

GCF(57981,57987) = 3

We will now calculate the prime factors of 57981 and 57987, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 57981 and 57987.

How to find the GCF of 57981 and 57987?

We will first find the prime factorization of 57981 and 57987. After we will calculate the factors of 57981 and 57987 and find the biggest common factor number .

Step-1: Prime Factorization of 57981

Prime factors of 57981 are 3, 7, 11, 251. Prime factorization of 57981 in exponential form is:

57981 = 3¹ × 7¹ × 11¹ × 251¹

Step-2: Prime Factorization of 57987

Prime factors of 57987 are 3, 17, 379. Prime factorization of 57987 in exponential form is:

57987 = 3² × 17¹ × 379¹

Step-3: Factors of 57981

List of positive integer factors of 57981 that divides 57981 without a remainder.

1, 3, 7, 11, 21, 33, 77, 231, 251, 753, 1757, 2761, 5271, 8283, 19327

Step-4: Factors of 57987

List of positive integer factors of 57987 that divides 57981 without a remainder.

1, 3, 9, 17, 51, 153, 379, 1137, 3411, 6443, 19329

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 57981 and 57987. The biggest common factor number is the GCF number.
So the greatest common factor 57981 and 57987 is 3.

Also check out the Least Common Multiple of 57981 and 57987