What is the Greatest Common Factor of 86780 and 86790?

Greatest common factor (GCF) of 86780 and 86790 is 10.

GCF(86780,86790) = 10

We will now calculate the prime factors of 86780 and 86790, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 86780 and 86790.

How to find the GCF of 86780 and 86790?

We will first find the prime factorization of 86780 and 86790. After we will calculate the factors of 86780 and 86790 and find the biggest common factor number .

Step-1: Prime Factorization of 86780

Prime factors of 86780 are 2, 5, 4339. Prime factorization of 86780 in exponential form is:

86780 = 2² × 5¹ × 4339¹

Step-2: Prime Factorization of 86790

Prime factors of 86790 are 2, 3, 5, 11, 263. Prime factorization of 86790 in exponential form is:

86790 = 2¹ × 3¹ × 5¹ × 11¹ × 263¹

Step-3: Factors of 86780

List of positive integer factors of 86780 that divides 86780 without a remainder.

1, 2, 4, 5, 10, 20, 4339, 8678, 17356, 21695, 43390

Step-4: Factors of 86790

List of positive integer factors of 86790 that divides 86780 without a remainder.

1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 110, 165, 263, 330, 526, 789, 1315, 1578, 2630, 2893, 3945, 5786, 7890, 8679, 14465, 17358, 28930, 43395

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 86780 and 86790. The biggest common factor number is the GCF number.
So the greatest common factor 86780 and 86790 is 10.

Also check out the Least Common Multiple of 86780 and 86790