What is the Greatest Common Factor of 51015 and 51021?

Greatest common factor (GCF) of 51015 and 51021 is 3.

GCF(51015,51021) = 3

We will now calculate the prime factors of 51015 and 51021, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 51015 and 51021.

How to find the GCF of 51015 and 51021?

We will first find the prime factorization of 51015 and 51021. After we will calculate the factors of 51015 and 51021 and find the biggest common factor number .

Step-1: Prime Factorization of 51015

Prime factors of 51015 are 3, 5, 19, 179. Prime factorization of 51015 in exponential form is:

51015 = 3¹ × 5¹ × 19¹ × 179¹

Step-2: Prime Factorization of 51021

Prime factors of 51021 are 3, 5669. Prime factorization of 51021 in exponential form is:

51021 = 3² × 5669¹

Step-3: Factors of 51015

List of positive integer factors of 51015 that divides 51015 without a remainder.

1, 3, 5, 15, 19, 57, 95, 179, 285, 537, 895, 2685, 3401, 10203, 17005

Step-4: Factors of 51021

List of positive integer factors of 51021 that divides 51015 without a remainder.

1, 3, 9, 5669, 17007

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 51015 and 51021. The biggest common factor number is the GCF number.
So the greatest common factor 51015 and 51021 is 3.

Also check out the Least Common Multiple of 51015 and 51021