What is the Greatest Common Factor of 15705 and 15711?

Greatest common factor (GCF) of 15705 and 15711 is 3.

GCF(15705,15711) = 3

We will now calculate the prime factors of 15705 and 15711, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15705 and 15711.

How to find the GCF of 15705 and 15711?

We will first find the prime factorization of 15705 and 15711. After we will calculate the factors of 15705 and 15711 and find the biggest common factor number .

Step-1: Prime Factorization of 15705

Prime factors of 15705 are 3, 5, 349. Prime factorization of 15705 in exponential form is:

15705 = 3² × 5¹ × 349¹

Step-2: Prime Factorization of 15711

Prime factors of 15711 are 3, 5237. Prime factorization of 15711 in exponential form is:

15711 = 3¹ × 5237¹

Step-3: Factors of 15705

List of positive integer factors of 15705 that divides 15705 without a remainder.

1, 3, 5, 9, 15, 45, 349, 1047, 1745, 3141, 5235

Step-4: Factors of 15711

List of positive integer factors of 15711 that divides 15705 without a remainder.

1, 3, 5237

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15705 and 15711. The biggest common factor number is the GCF number.
So the greatest common factor 15705 and 15711 is 3.

Also check out the Least Common Multiple of 15705 and 15711