What is the Greatest Common Factor of 40840 and 40855?

Greatest common factor (GCF) of 40840 and 40855 is 5.

GCF(40840,40855) = 5

We will now calculate the prime factors of 40840 and 40855, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40840 and 40855.

How to find the GCF of 40840 and 40855?

We will first find the prime factorization of 40840 and 40855. After we will calculate the factors of 40840 and 40855 and find the biggest common factor number .

Step-1: Prime Factorization of 40840

Prime factors of 40840 are 2, 5, 1021. Prime factorization of 40840 in exponential form is:

40840 = 2³ × 5¹ × 1021¹

Step-2: Prime Factorization of 40855

Prime factors of 40855 are 5, 8171. Prime factorization of 40855 in exponential form is:

40855 = 5¹ × 8171¹

Step-3: Factors of 40840

List of positive integer factors of 40840 that divides 40840 without a remainder.

1, 2, 4, 5, 8, 10, 20, 40, 1021, 2042, 4084, 5105, 8168, 10210, 20420

Step-4: Factors of 40855

List of positive integer factors of 40855 that divides 40840 without a remainder.

1, 5, 8171

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40840 and 40855. The biggest common factor number is the GCF number.
So the greatest common factor 40840 and 40855 is 5.

Also check out the Least Common Multiple of 40840 and 40855