What is the Greatest Common Factor of 9958 and 9970?

Greatest common factor (GCF) of 9958 and 9970 is 2.

GCF(9958,9970) = 2

We will now calculate the prime factors of 9958 and 9970, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9958 and 9970.

How to find the GCF of 9958 and 9970?

We will first find the prime factorization of 9958 and 9970. After we will calculate the factors of 9958 and 9970 and find the biggest common factor number .

Step-1: Prime Factorization of 9958

Prime factors of 9958 are 2, 13, 383. Prime factorization of 9958 in exponential form is:

9958 = 2¹ × 13¹ × 383¹

Step-2: Prime Factorization of 9970

Prime factors of 9970 are 2, 5, 997. Prime factorization of 9970 in exponential form is:

9970 = 2¹ × 5¹ × 997¹

Step-3: Factors of 9958

List of positive integer factors of 9958 that divides 9958 without a remainder.

1, 2, 13, 26, 383, 766, 4979

Step-4: Factors of 9970

List of positive integer factors of 9970 that divides 9958 without a remainder.

1, 2, 5, 10, 997, 1994, 4985

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9958 and 9970. The biggest common factor number is the GCF number.
So the greatest common factor 9958 and 9970 is 2.

Also check out the Least Common Multiple of 9958 and 9970