What is the Greatest Common Factor of 40840 and 40845?

Greatest common factor (GCF) of 40840 and 40845 is 5.

GCF(40840,40845) = 5

We will now calculate the prime factors of 40840 and 40845, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40840 and 40845.

How to find the GCF of 40840 and 40845?

We will first find the prime factorization of 40840 and 40845. After we will calculate the factors of 40840 and 40845 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 40845

Prime factors of 40845 are 3, 5, 7, 389. Prime factorization of 40845 in exponential form is:

40845 = 3¹ × 5¹ × 7¹ × 389¹

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 40845

List of positive integer factors of 40845 that divides 40840 without a remainder.

1, 3, 5, 7, 15, 21, 35, 105, 389, 1167, 1945, 2723, 5835, 8169, 13615

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40840 and 40845. The biggest common factor number is the GCF number.
So the greatest common factor 40840 and 40845 is 5.

Also check out the Least Common Multiple of 40840 and 40845