What is the Greatest Common Factor of 85790 and 85805?

Greatest common factor (GCF) of 85790 and 85805 is 5.

GCF(85790,85805) = 5

We will now calculate the prime factors of 85790 and 85805, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 85790 and 85805.

How to find the GCF of 85790 and 85805?

We will first find the prime factorization of 85790 and 85805. After we will calculate the factors of 85790 and 85805 and find the biggest common factor number .

Step-1: Prime Factorization of 85790

Prime factors of 85790 are 2, 5, 23, 373. Prime factorization of 85790 in exponential form is:

85790 = 2¹ × 5¹ × 23¹ × 373¹

Step-2: Prime Factorization of 85805

Prime factors of 85805 are 5, 131. Prime factorization of 85805 in exponential form is:

85805 = 5¹ × 131²

Step-3: Factors of 85790

List of positive integer factors of 85790 that divides 85790 without a remainder.

1, 2, 5, 10, 23, 46, 115, 230, 373, 746, 1865, 3730, 8579, 17158, 42895

Step-4: Factors of 85805

List of positive integer factors of 85805 that divides 85790 without a remainder.

1, 5, 131, 655, 17161

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 85790 and 85805. The biggest common factor number is the GCF number.
So the greatest common factor 85790 and 85805 is 5.

Also check out the Least Common Multiple of 85790 and 85805