What is the Greatest Common Factor of 82780 and 82790?

Greatest common factor (GCF) of 82780 and 82790 is 10.

GCF(82780,82790) = 10

We will now calculate the prime factors of 82780 and 82790, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 82780 and 82790.

How to find the GCF of 82780 and 82790?

We will first find the prime factorization of 82780 and 82790. After we will calculate the factors of 82780 and 82790 and find the biggest common factor number .

Step-1: Prime Factorization of 82780

Prime factors of 82780 are 2, 5, 4139. Prime factorization of 82780 in exponential form is:

82780 = 2² × 5¹ × 4139¹

Step-2: Prime Factorization of 82790

Prime factors of 82790 are 2, 5, 17, 487. Prime factorization of 82790 in exponential form is:

82790 = 2¹ × 5¹ × 17¹ × 487¹

Step-3: Factors of 82780

List of positive integer factors of 82780 that divides 82780 without a remainder.

1, 2, 4, 5, 10, 20, 4139, 8278, 16556, 20695, 41390

Step-4: Factors of 82790

List of positive integer factors of 82790 that divides 82780 without a remainder.

1, 2, 5, 10, 17, 34, 85, 170, 487, 974, 2435, 4870, 8279, 16558, 41395

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 82780 and 82790. The biggest common factor number is the GCF number.
So the greatest common factor 82780 and 82790 is 10.

Also check out the Least Common Multiple of 82780 and 82790