What is the Greatest Common Factor of 15951 and 15955?

Greatest common factor (GCF) of 15951 and 15955 is 1.

GCF(15951,15955) = 1

We will now calculate the prime factors of 15951 and 15955, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15951 and 15955.

How to find the GCF of 15951 and 15955?

We will first find the prime factorization of 15951 and 15955. After we will calculate the factors of 15951 and 15955 and find the biggest common factor number .

Step-1: Prime Factorization of 15951

Prime factors of 15951 are 3, 13, 409. Prime factorization of 15951 in exponential form is:

15951 = 3¹ × 13¹ × 409¹

Step-2: Prime Factorization of 15955

Prime factors of 15955 are 5, 3191. Prime factorization of 15955 in exponential form is:

15955 = 5¹ × 3191¹

Step-3: Factors of 15951

List of positive integer factors of 15951 that divides 15951 without a remainder.

1, 3, 13, 39, 409, 1227, 5317

Step-4: Factors of 15955

List of positive integer factors of 15955 that divides 15951 without a remainder.

1, 5, 3191

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15951 and 15955. The biggest common factor number is the GCF number.
So the greatest common factor 15951 and 15955 is 1.

Also check out the Least Common Multiple of 15951 and 15955