What is the Greatest Common Factor of 38691 and 38709?

Greatest common factor (GCF) of 38691 and 38709 is 9.

GCF(38691,38709) = 9

We will now calculate the prime factors of 38691 and 38709, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 38691 and 38709.

How to find the GCF of 38691 and 38709?

We will first find the prime factorization of 38691 and 38709. After we will calculate the factors of 38691 and 38709 and find the biggest common factor number .

Step-1: Prime Factorization of 38691

Prime factors of 38691 are 3, 1433. Prime factorization of 38691 in exponential form is:

38691 = 3³ × 1433¹

Step-2: Prime Factorization of 38709

Prime factors of 38709 are 3, 11, 17, 23. Prime factorization of 38709 in exponential form is:

38709 = 3² × 11¹ × 17¹ × 23¹

Step-3: Factors of 38691

List of positive integer factors of 38691 that divides 38691 without a remainder.

1, 3, 9, 27, 1433, 4299, 12897

Step-4: Factors of 38709

List of positive integer factors of 38709 that divides 38691 without a remainder.

1, 3, 9, 11, 17, 23, 33, 51, 69, 99, 153, 187, 207, 253, 391, 561, 759, 1173, 1683, 2277, 3519, 4301, 12903

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 38691 and 38709. The biggest common factor number is the GCF number.
So the greatest common factor 38691 and 38709 is 9.

Also check out the Least Common Multiple of 38691 and 38709