What is the Greatest Common Factor of 71943 and 71955?

Greatest common factor (GCF) of 71943 and 71955 is 3.

GCF(71943,71955) = 3

We will now calculate the prime factors of 71943 and 71955, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 71943 and 71955.

How to find the GCF of 71943 and 71955?

We will first find the prime factorization of 71943 and 71955. After we will calculate the factors of 71943 and 71955 and find the biggest common factor number .

Step-1: Prime Factorization of 71943

Prime factors of 71943 are 3, 23981. Prime factorization of 71943 in exponential form is:

71943 = 3¹ × 23981¹

Step-2: Prime Factorization of 71955

Prime factors of 71955 are 3, 5, 13, 41. Prime factorization of 71955 in exponential form is:

71955 = 3³ × 5¹ × 13¹ × 41¹

Step-3: Factors of 71943

List of positive integer factors of 71943 that divides 71943 without a remainder.

1, 3, 23981

Step-4: Factors of 71955

List of positive integer factors of 71955 that divides 71943 without a remainder.

1, 3, 5, 9, 13, 15, 27, 39, 41, 45, 65, 117, 123, 135, 195, 205, 351, 369, 533, 585, 615, 1107, 1599, 1755, 1845, 2665, 4797, 5535, 7995, 14391, 23985

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 71943 and 71955. The biggest common factor number is the GCF number.
So the greatest common factor 71943 and 71955 is 3.

Also check out the Least Common Multiple of 71943 and 71955