What is the Greatest Common Factor of 57015 and 57021?

Greatest common factor (GCF) of 57015 and 57021 is 3.

GCF(57015,57021) = 3

We will now calculate the prime factors of 57015 and 57021, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 57015 and 57021.

How to find the GCF of 57015 and 57021?

We will first find the prime factorization of 57015 and 57021. After we will calculate the factors of 57015 and 57021 and find the biggest common factor number .

Step-1: Prime Factorization of 57015

Prime factors of 57015 are 3, 5, 7, 181. Prime factorization of 57015 in exponential form is:

57015 = 3² × 5¹ × 7¹ × 181¹

Step-2: Prime Factorization of 57021

Prime factors of 57021 are 3, 83, 229. Prime factorization of 57021 in exponential form is:

57021 = 3¹ × 83¹ × 229¹

Step-3: Factors of 57015

List of positive integer factors of 57015 that divides 57015 without a remainder.

1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 181, 315, 543, 905, 1267, 1629, 2715, 3801, 6335, 8145, 11403, 19005

Step-4: Factors of 57021

List of positive integer factors of 57021 that divides 57015 without a remainder.

1, 3, 83, 229, 249, 687, 19007

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 57015 and 57021. The biggest common factor number is the GCF number.
So the greatest common factor 57015 and 57021 is 3.

Also check out the Least Common Multiple of 57015 and 57021