What is the Greatest Common Factor of 68409 and 68415?

Greatest common factor (GCF) of 68409 and 68415 is 3.

GCF(68409,68415) = 3

We will now calculate the prime factors of 68409 and 68415, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68409 and 68415.

How to find the GCF of 68409 and 68415?

We will first find the prime factorization of 68409 and 68415. After we will calculate the factors of 68409 and 68415 and find the biggest common factor number .

Step-1: Prime Factorization of 68409

Prime factors of 68409 are 3, 11, 691. Prime factorization of 68409 in exponential form is:

68409 = 3² × 11¹ × 691¹

Step-2: Prime Factorization of 68415

Prime factors of 68415 are 3, 5, 4561. Prime factorization of 68415 in exponential form is:

68415 = 3¹ × 5¹ × 4561¹

Step-3: Factors of 68409

List of positive integer factors of 68409 that divides 68409 without a remainder.

1, 3, 9, 11, 33, 99, 691, 2073, 6219, 7601, 22803

Step-4: Factors of 68415

List of positive integer factors of 68415 that divides 68409 without a remainder.

1, 3, 5, 15, 4561, 13683, 22805

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68409 and 68415. The biggest common factor number is the GCF number.
So the greatest common factor 68409 and 68415 is 3.

Also check out the Least Common Multiple of 68409 and 68415