What is the Greatest Common Factor of 80420 and 80428?

Greatest common factor (GCF) of 80420 and 80428 is 4.

GCF(80420,80428) = 4

We will now calculate the prime factors of 80420 and 80428, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 80420 and 80428.

How to find the GCF of 80420 and 80428?

We will first find the prime factorization of 80420 and 80428. After we will calculate the factors of 80420 and 80428 and find the biggest common factor number .

Step-1: Prime Factorization of 80420

Prime factors of 80420 are 2, 5, 4021. Prime factorization of 80420 in exponential form is:

80420 = 2² × 5¹ × 4021¹

Step-2: Prime Factorization of 80428

Prime factors of 80428 are 2, 20107. Prime factorization of 80428 in exponential form is:

80428 = 2² × 20107¹

Step-3: Factors of 80420

List of positive integer factors of 80420 that divides 80420 without a remainder.

1, 2, 4, 5, 10, 20, 4021, 8042, 16084, 20105, 40210

Step-4: Factors of 80428

List of positive integer factors of 80428 that divides 80420 without a remainder.

1, 2, 4, 20107, 40214

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 80420 and 80428. The biggest common factor number is the GCF number.
So the greatest common factor 80420 and 80428 is 4.

Also check out the Least Common Multiple of 80420 and 80428