What is the Greatest Common Factor of 84020 and 84040?

Greatest common factor (GCF) of 84020 and 84040 is 20.

GCF(84020,84040) = 20

We will now calculate the prime factors of 84020 and 84040, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 84020 and 84040.

How to find the GCF of 84020 and 84040?

We will first find the prime factorization of 84020 and 84040. After we will calculate the factors of 84020 and 84040 and find the biggest common factor number .

Step-1: Prime Factorization of 84020

Prime factors of 84020 are 2, 5, 4201. Prime factorization of 84020 in exponential form is:

84020 = 2² × 5¹ × 4201¹

Step-2: Prime Factorization of 84040

Prime factors of 84040 are 2, 5, 11, 191. Prime factorization of 84040 in exponential form is:

84040 = 2³ × 5¹ × 11¹ × 191¹

Step-3: Factors of 84020

List of positive integer factors of 84020 that divides 84020 without a remainder.

1, 2, 4, 5, 10, 20, 4201, 8402, 16804, 21005, 42010

Step-4: Factors of 84040

List of positive integer factors of 84040 that divides 84020 without a remainder.

1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 191, 220, 382, 440, 764, 955, 1528, 1910, 2101, 3820, 4202, 7640, 8404, 10505, 16808, 21010, 42020

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 84020 and 84040. The biggest common factor number is the GCF number.
So the greatest common factor 84020 and 84040 is 20.

Also check out the Least Common Multiple of 84020 and 84040