What is the Greatest Common Factor of 40000 and 40004?

Greatest common factor (GCF) of 40000 and 40004 is 4.

GCF(40000,40004) = 4

We will now calculate the prime factors of 40000 and 40004, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40000 and 40004.

How to find the GCF of 40000 and 40004?

We will first find the prime factorization of 40000 and 40004. After we will calculate the factors of 40000 and 40004 and find the biggest common factor number .

Step-1: Prime Factorization of 40000

Prime factors of 40000 are 2, 5. Prime factorization of 40000 in exponential form is:

40000 = 2⁶ × 5⁴

Step-2: Prime Factorization of 40004

Prime factors of 40004 are 2, 73, 137. Prime factorization of 40004 in exponential form is:

40004 = 2² × 73¹ × 137¹

Step-3: Factors of 40000

List of positive integer factors of 40000 that divides 40000 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 2000, 2500, 4000, 5000, 8000, 10000, 20000

Step-4: Factors of 40004

List of positive integer factors of 40004 that divides 40000 without a remainder.

1, 2, 4, 73, 137, 146, 274, 292, 548, 10001, 20002

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40000 and 40004. The biggest common factor number is the GCF number.
So the greatest common factor 40000 and 40004 is 4.

Also check out the Least Common Multiple of 40000 and 40004