What is the Greatest Common Factor of 68709 and 68721?

Greatest common factor (GCF) of 68709 and 68721 is 3.

GCF(68709,68721) = 3

We will now calculate the prime factors of 68709 and 68721, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 68709 and 68721.

How to find the GCF of 68709 and 68721?

We will first find the prime factorization of 68709 and 68721. After we will calculate the factors of 68709 and 68721 and find the biggest common factor number .

Step-1: Prime Factorization of 68709

Prime factors of 68709 are 3, 37, 619. Prime factorization of 68709 in exponential form is:

68709 = 3¹ × 37¹ × 619¹

Step-2: Prime Factorization of 68721

Prime factors of 68721 are 3, 22907. Prime factorization of 68721 in exponential form is:

68721 = 3¹ × 22907¹

Step-3: Factors of 68709

List of positive integer factors of 68709 that divides 68709 without a remainder.

1, 3, 37, 111, 619, 1857, 22903

Step-4: Factors of 68721

List of positive integer factors of 68721 that divides 68709 without a remainder.

1, 3, 22907

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 68709 and 68721. The biggest common factor number is the GCF number.
So the greatest common factor 68709 and 68721 is 3.

Also check out the Least Common Multiple of 68709 and 68721