What is the Greatest Common Factor of 20040 and 20057?

Greatest common factor (GCF) of 20040 and 20057 is 1.

GCF(20040,20057) = 1

We will now calculate the prime factors of 20040 and 20057, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 20040 and 20057.

How to find the GCF of 20040 and 20057?

We will first find the prime factorization of 20040 and 20057. After we will calculate the factors of 20040 and 20057 and find the biggest common factor number .

Step-1: Prime Factorization of 20040

Prime factors of 20040 are 2, 3, 5, 167. Prime factorization of 20040 in exponential form is:

20040 = 2³ × 3¹ × 5¹ × 167¹

Step-2: Prime Factorization of 20057

Prime factors of 20057 are 31, 647. Prime factorization of 20057 in exponential form is:

20057 = 31¹ × 647¹

Step-3: Factors of 20040

List of positive integer factors of 20040 that divides 20040 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 167, 334, 501, 668, 835, 1002, 1336, 1670, 2004, 2505, 3340, 4008, 5010, 6680, 10020

Step-4: Factors of 20057

List of positive integer factors of 20057 that divides 20040 without a remainder.

1, 31, 647

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 20040 and 20057. The biggest common factor number is the GCF number.
So the greatest common factor 20040 and 20057 is 1.

Also check out the Least Common Multiple of 20040 and 20057