What is the Greatest Common Factor of 97815 and 97821?

Greatest common factor (GCF) of 97815 and 97821 is 3.

GCF(97815,97821) = 3

We will now calculate the prime factors of 97815 and 97821, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 97815 and 97821.

How to find the GCF of 97815 and 97821?

We will first find the prime factorization of 97815 and 97821. After we will calculate the factors of 97815 and 97821 and find the biggest common factor number .

Step-1: 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-2: Prime Factorization of 97821

Prime factors of 97821 are 3, 3623. Prime factorization of 97821 in exponential form is:

97821 = 3³ × 3623¹

Step-3: Factors of 97815

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

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

Step-4: Factors of 97821

List of positive integer factors of 97821 that divides 97815 without a remainder.

1, 3, 9, 27, 3623, 10869, 32607

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 97815 and 97821. The biggest common factor number is the GCF number.
So the greatest common factor 97815 and 97821 is 3.

Also check out the Least Common Multiple of 97815 and 97821