What is the Greatest Common Factor of 8780 and 8785?

Greatest common factor (GCF) of 8780 and 8785 is 5.

GCF(8780,8785) = 5

We will now calculate the prime factors of 8780 and 8785, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8780 and 8785.

How to find the GCF of 8780 and 8785?

We will first find the prime factorization of 8780 and 8785. After we will calculate the factors of 8780 and 8785 and find the biggest common factor number .

Step-1: Prime Factorization of 8780

Prime factors of 8780 are 2, 5, 439. Prime factorization of 8780 in exponential form is:

8780 = 2² × 5¹ × 439¹

Step-2: Prime Factorization of 8785

Prime factors of 8785 are 5, 7, 251. Prime factorization of 8785 in exponential form is:

8785 = 5¹ × 7¹ × 251¹

Step-3: Factors of 8780

List of positive integer factors of 8780 that divides 8780 without a remainder.

1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 4390

Step-4: Factors of 8785

List of positive integer factors of 8785 that divides 8780 without a remainder.

1, 5, 7, 35, 251, 1255, 1757

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 8780 and 8785. The biggest common factor number is the GCF number.
So the greatest common factor 8780 and 8785 is 5.

Also check out the Least Common Multiple of 8780 and 8785