What is the Greatest Common Factor of 40778 and 40790?

Greatest common factor (GCF) of 40778 and 40790 is 2.

GCF(40778,40790) = 2

We will now calculate the prime factors of 40778 and 40790, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 40778 and 40790.

How to find the GCF of 40778 and 40790?

We will first find the prime factorization of 40778 and 40790. After we will calculate the factors of 40778 and 40790 and find the biggest common factor number .

Step-1: Prime Factorization of 40778

Prime factors of 40778 are 2, 20389. Prime factorization of 40778 in exponential form is:

40778 = 2¹ × 20389¹

Step-2: Prime Factorization of 40790

Prime factors of 40790 are 2, 5, 4079. Prime factorization of 40790 in exponential form is:

40790 = 2¹ × 5¹ × 4079¹

Step-3: Factors of 40778

List of positive integer factors of 40778 that divides 40778 without a remainder.

1, 2, 20389

Step-4: Factors of 40790

List of positive integer factors of 40790 that divides 40778 without a remainder.

1, 2, 5, 10, 4079, 8158, 20395

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 40778 and 40790. The biggest common factor number is the GCF number.
So the greatest common factor 40778 and 40790 is 2.

Also check out the Least Common Multiple of 40778 and 40790