What is the Greatest Common Factor of 77943 and 77958?

Greatest common factor (GCF) of 77943 and 77958 is 3.

GCF(77943,77958) = 3

We will now calculate the prime factors of 77943 and 77958, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 77943 and 77958.

How to find the GCF of 77943 and 77958?

We will first find the prime factorization of 77943 and 77958. After we will calculate the factors of 77943 and 77958 and find the biggest common factor number .

Step-1: Prime Factorization of 77943

Prime factors of 77943 are 3, 25981. Prime factorization of 77943 in exponential form is:

77943 = 3¹ × 25981¹

Step-2: Prime Factorization of 77958

Prime factors of 77958 are 2, 3, 61, 71. Prime factorization of 77958 in exponential form is:

77958 = 2¹ × 3² × 61¹ × 71¹

Step-3: Factors of 77943

List of positive integer factors of 77943 that divides 77943 without a remainder.

1, 3, 25981

Step-4: Factors of 77958

List of positive integer factors of 77958 that divides 77943 without a remainder.

1, 2, 3, 6, 9, 18, 61, 71, 122, 142, 183, 213, 366, 426, 549, 639, 1098, 1278, 4331, 8662, 12993, 25986, 38979

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 77943 and 77958. The biggest common factor number is the GCF number.
So the greatest common factor 77943 and 77958 is 3.

Also check out the Least Common Multiple of 77943 and 77958