What is the Greatest Common Factor of 99943 and 99957?

Greatest common factor (GCF) of 99943 and 99957 is 1.

GCF(99943,99957) = 1

We will now calculate the prime factors of 99943 and 99957, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 99943 and 99957.

How to find the GCF of 99943 and 99957?

We will first find the prime factorization of 99943 and 99957. After we will calculate the factors of 99943 and 99957 and find the biggest common factor number .

Step-1: Prime Factorization of 99943

Prime factors of 99943 are 17, 5879. Prime factorization of 99943 in exponential form is:

99943 = 17¹ × 5879¹

Step-2: Prime Factorization of 99957

Prime factors of 99957 are 3, 11, 13, 233. Prime factorization of 99957 in exponential form is:

99957 = 3¹ × 11¹ × 13¹ × 233¹

Step-3: Factors of 99943

List of positive integer factors of 99943 that divides 99943 without a remainder.

1, 17, 5879

Step-4: Factors of 99957

List of positive integer factors of 99957 that divides 99943 without a remainder.

1, 3, 11, 13, 33, 39, 143, 233, 429, 699, 2563, 3029, 7689, 9087, 33319

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 99943 and 99957. The biggest common factor number is the GCF number.
So the greatest common factor 99943 and 99957 is 1.

Also check out the Least Common Multiple of 99943 and 99957