What is the Greatest Common Factor of 75805 and 75820?

Greatest common factor (GCF) of 75805 and 75820 is 5.

GCF(75805,75820) = 5

We will now calculate the prime factors of 75805 and 75820, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 75805 and 75820.

How to find the GCF of 75805 and 75820?

We will first find the prime factorization of 75805 and 75820. After we will calculate the factors of 75805 and 75820 and find the biggest common factor number .

Step-1: Prime Factorization of 75805

Prime factors of 75805 are 5, 15161. Prime factorization of 75805 in exponential form is:

75805 = 5¹ × 15161¹

Step-2: Prime Factorization of 75820

Prime factors of 75820 are 2, 5, 17, 223. Prime factorization of 75820 in exponential form is:

75820 = 2² × 5¹ × 17¹ × 223¹

Step-3: Factors of 75805

List of positive integer factors of 75805 that divides 75805 without a remainder.

1, 5, 15161

Step-4: Factors of 75820

List of positive integer factors of 75820 that divides 75805 without a remainder.

1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 223, 340, 446, 892, 1115, 2230, 3791, 4460, 7582, 15164, 18955, 37910

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 75805 and 75820. The biggest common factor number is the GCF number.
So the greatest common factor 75805 and 75820 is 5.

Also check out the Least Common Multiple of 75805 and 75820