What is the Greatest Common Factor of 42040 and 42060?

Greatest common factor (GCF) of 42040 and 42060 is 20.

GCF(42040,42060) = 20

We will now calculate the prime factors of 42040 and 42060, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 42040 and 42060.

How to find the GCF of 42040 and 42060?

We will first find the prime factorization of 42040 and 42060. After we will calculate the factors of 42040 and 42060 and find the biggest common factor number .

Step-1: Prime Factorization of 42040

Prime factors of 42040 are 2, 5, 1051. Prime factorization of 42040 in exponential form is:

42040 = 2³ × 5¹ × 1051¹

Step-2: Prime Factorization of 42060

Prime factors of 42060 are 2, 3, 5, 701. Prime factorization of 42060 in exponential form is:

42060 = 2² × 3¹ × 5¹ × 701¹

Step-3: Factors of 42040

List of positive integer factors of 42040 that divides 42040 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1051, 2102, 4204, 5255, 8408, 10510, 21020

Step-4: Factors of 42060

List of positive integer factors of 42060 that divides 42040 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 701, 1402, 2103, 2804, 3505, 4206, 7010, 8412, 10515, 14020, 21030

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 42040 and 42060. The biggest common factor number is the GCF number.
So the greatest common factor 42040 and 42060 is 20.

Also check out the Least Common Multiple of 42040 and 42060