What is the Greatest Common Factor of 97805 and 97815?

Greatest common factor (GCF) of 97805 and 97815 is 5.

GCF(97805,97815) = 5

We will now calculate the prime factors of 97805 and 97815, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 97805 and 97815.

How to find the GCF of 97805 and 97815?

We will first find the prime factorization of 97805 and 97815. After we will calculate the factors of 97805 and 97815 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 97815

Prime factors of 97815 are 3, 5, 6521. Prime factorization of 97815 in exponential form is:

97815 = 3¹ × 5¹ × 6521¹

Step-3: Factors of 97805

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

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

Step-4: Factors of 97815

List of positive integer factors of 97815 that divides 97805 without a remainder.

1, 3, 5, 15, 6521, 19563, 32605

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 97805 and 97815. The biggest common factor number is the GCF number.
So the greatest common factor 97805 and 97815 is 5.

Also check out the Least Common Multiple of 97805 and 97815