What is the Greatest Common Factor of 15729 and 15746?

Greatest common factor (GCF) of 15729 and 15746 is 1.

GCF(15729,15746) = 1

We will now calculate the prime factors of 15729 and 15746, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15729 and 15746.

How to find the GCF of 15729 and 15746?

We will first find the prime factorization of 15729 and 15746. After we will calculate the factors of 15729 and 15746 and find the biggest common factor number .

Step-1: Prime Factorization of 15729

Prime factors of 15729 are 3, 7, 107. Prime factorization of 15729 in exponential form is:

15729 = 3¹ × 7² × 107¹

Step-2: Prime Factorization of 15746

Prime factors of 15746 are 2, 7873. Prime factorization of 15746 in exponential form is:

15746 = 2¹ × 7873¹

Step-3: Factors of 15729

List of positive integer factors of 15729 that divides 15729 without a remainder.

1, 3, 7, 21, 49, 107, 147, 321, 749, 2247, 5243

Step-4: Factors of 15746

List of positive integer factors of 15746 that divides 15729 without a remainder.

1, 2, 7873

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15729 and 15746. The biggest common factor number is the GCF number.
So the greatest common factor 15729 and 15746 is 1.

Also check out the Least Common Multiple of 15729 and 15746