What is the Greatest Common Factor of 40540 and 40555?

Greatest common factor (GCF) of 40540 and 40555 is 5.

GCF(40540,40555) = 5

We will now calculate the prime factors of 40540 and 40555, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40540 and 40555.

How to find the GCF of 40540 and 40555?

We will first find the prime factorization of 40540 and 40555. After we will calculate the factors of 40540 and 40555 and find the biggest common factor number .

Step-1: Prime Factorization of 40540

Prime factors of 40540 are 2, 5, 2027. Prime factorization of 40540 in exponential form is:

40540 = 2² × 5¹ × 2027¹

Step-2: Prime Factorization of 40555

Prime factors of 40555 are 5, 8111. Prime factorization of 40555 in exponential form is:

40555 = 5¹ × 8111¹

Step-3: Factors of 40540

List of positive integer factors of 40540 that divides 40540 without a remainder.

1, 2, 4, 5, 10, 20, 2027, 4054, 8108, 10135, 20270

Step-4: Factors of 40555

List of positive integer factors of 40555 that divides 40540 without a remainder.

1, 5, 8111

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40540 and 40555. The biggest common factor number is the GCF number.
So the greatest common factor 40540 and 40555 is 5.

Also check out the Least Common Multiple of 40540 and 40555