What is the Greatest Common Factor of 9943 and 9961?

Greatest common factor (GCF) of 9943 and 9961 is 1.

GCF(9943,9961) = 1

We will now calculate the prime factors of 9943 and 9961, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 9943 and 9961.

How to find the GCF of 9943 and 9961?

We will first find the prime factorization of 9943 and 9961. After we will calculate the factors of 9943 and 9961 and find the biggest common factor number .

Step-1: Prime Factorization of 9943

Prime factors of 9943 are 61, 163. Prime factorization of 9943 in exponential form is:

9943 = 61¹ × 163¹

Step-2: Prime Factorization of 9961

Prime factors of 9961 are 7, 1423. Prime factorization of 9961 in exponential form is:

9961 = 7¹ × 1423¹

Step-3: Factors of 9943

List of positive integer factors of 9943 that divides 9943 without a remainder.

1, 61, 163

Step-4: Factors of 9961

List of positive integer factors of 9961 that divides 9943 without a remainder.

1, 7, 1423

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 9943 and 9961. The biggest common factor number is the GCF number.
So the greatest common factor 9943 and 9961 is 1.

Also check out the Least Common Multiple of 9943 and 9961