What is the Greatest Common Factor of 97785 and 97805?

Greatest common factor (GCF) of 97785 and 97805 is 5.

GCF(97785,97805) = 5

We will now calculate the prime factors of 97785 and 97805, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 97785 and 97805.

How to find the GCF of 97785 and 97805?

We will first find the prime factorization of 97785 and 97805. After we will calculate the factors of 97785 and 97805 and find the biggest common factor number .

Step-1: Prime Factorization of 97785

Prime factors of 97785 are 3, 5, 41, 53. Prime factorization of 97785 in exponential form is:

97785 = 3² × 5¹ × 41¹ × 53¹

Step-2: Prime Factorization of 97805

Prime factors of 97805 are 5, 31, 631. Prime factorization of 97805 in exponential form is:

97805 = 5¹ × 31¹ × 631¹

Step-3: Factors of 97785

List of positive integer factors of 97785 that divides 97785 without a remainder.

1, 3, 5, 9, 15, 41, 45, 53, 123, 159, 205, 265, 369, 477, 615, 795, 1845, 2173, 2385, 6519, 10865, 19557, 32595

Step-4: Factors of 97805

List of positive integer factors of 97805 that divides 97785 without a remainder.

1, 5, 31, 155, 631, 3155, 19561

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 97785 and 97805. The biggest common factor number is the GCF number.
So the greatest common factor 97785 and 97805 is 5.

Also check out the Least Common Multiple of 97785 and 97805