What is the Greatest Common Factor of 9965 and 9970?

Greatest common factor (GCF) of 9965 and 9970 is 5.

GCF(9965,9970) = 5

We will now calculate the prime factors of 9965 and 9970, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9965 and 9970.

How to find the GCF of 9965 and 9970?

We will first find the prime factorization of 9965 and 9970. After we will calculate the factors of 9965 and 9970 and find the biggest common factor number .

Step-1: Prime Factorization of 9965

Prime factors of 9965 are 5, 1993. Prime factorization of 9965 in exponential form is:

9965 = 5¹ × 1993¹

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 9965

List of positive integer factors of 9965 that divides 9965 without a remainder.

1, 5, 1993

Step-4: Factors of 9970

List of positive integer factors of 9970 that divides 9965 without a remainder.

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

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9965 and 9970. The biggest common factor number is the GCF number.
So the greatest common factor 9965 and 9970 is 5.

Also check out the Least Common Multiple of 9965 and 9970