What is the Greatest Common Factor of 77830 and 77845?

Greatest common factor (GCF) of 77830 and 77845 is 5.

GCF(77830,77845) = 5

We will now calculate the prime factors of 77830 and 77845, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77830 and 77845.

How to find the GCF of 77830 and 77845?

We will first find the prime factorization of 77830 and 77845. After we will calculate the factors of 77830 and 77845 and find the biggest common factor number .

Step-1: Prime Factorization of 77830

Prime factors of 77830 are 2, 5, 43, 181. Prime factorization of 77830 in exponential form is:

77830 = 2¹ × 5¹ × 43¹ × 181¹

Step-2: Prime Factorization of 77845

Prime factors of 77845 are 5, 15569. Prime factorization of 77845 in exponential form is:

77845 = 5¹ × 15569¹

Step-3: Factors of 77830

List of positive integer factors of 77830 that divides 77830 without a remainder.

1, 2, 5, 10, 43, 86, 181, 215, 362, 430, 905, 1810, 7783, 15566, 38915

Step-4: Factors of 77845

List of positive integer factors of 77845 that divides 77830 without a remainder.

1, 5, 15569

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77830 and 77845. The biggest common factor number is the GCF number.
So the greatest common factor 77830 and 77845 is 5.

Also check out the Least Common Multiple of 77830 and 77845