What is the Greatest Common Factor of 15970 and 15981?

Greatest common factor (GCF) of 15970 and 15981 is 1.

GCF(15970,15981) = 1

We will now calculate the prime factors of 15970 and 15981, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15970 and 15981.

How to find the GCF of 15970 and 15981?

We will first find the prime factorization of 15970 and 15981. After we will calculate the factors of 15970 and 15981 and find the biggest common factor number .

Step-1: Prime Factorization of 15970

Prime factors of 15970 are 2, 5, 1597. Prime factorization of 15970 in exponential form is:

15970 = 2¹ × 5¹ × 1597¹

Step-2: Prime Factorization of 15981

Prime factors of 15981 are 3, 7, 761. Prime factorization of 15981 in exponential form is:

15981 = 3¹ × 7¹ × 761¹

Step-3: Factors of 15970

List of positive integer factors of 15970 that divides 15970 without a remainder.

1, 2, 5, 10, 1597, 3194, 7985

Step-4: Factors of 15981

List of positive integer factors of 15981 that divides 15970 without a remainder.

1, 3, 7, 21, 761, 2283, 5327

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 15970 and 15981. The biggest common factor number is the GCF number.
So the greatest common factor 15970 and 15981 is 1.

Also check out the Least Common Multiple of 15970 and 15981