What is the Greatest Common Factor of 40870 and 40878?

Greatest common factor (GCF) of 40870 and 40878 is 2.

GCF(40870,40878) = 2

We will now calculate the prime factors of 40870 and 40878, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40870 and 40878.

How to find the GCF of 40870 and 40878?

We will first find the prime factorization of 40870 and 40878. After we will calculate the factors of 40870 and 40878 and find the biggest common factor number .

Step-1: Prime Factorization of 40870

Prime factors of 40870 are 2, 5, 61, 67. Prime factorization of 40870 in exponential form is:

40870 = 2¹ × 5¹ × 61¹ × 67¹

Step-2: Prime Factorization of 40878

Prime factors of 40878 are 2, 3, 757. Prime factorization of 40878 in exponential form is:

40878 = 2¹ × 3³ × 757¹

Step-3: Factors of 40870

List of positive integer factors of 40870 that divides 40870 without a remainder.

1, 2, 5, 10, 61, 67, 122, 134, 305, 335, 610, 670, 4087, 8174, 20435

Step-4: Factors of 40878

List of positive integer factors of 40878 that divides 40870 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 757, 1514, 2271, 4542, 6813, 13626, 20439

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40870 and 40878. The biggest common factor number is the GCF number.
So the greatest common factor 40870 and 40878 is 2.

Also check out the Least Common Multiple of 40870 and 40878