What is the Greatest Common Factor of 1159 and 1178?

Greatest common factor (GCF) of 1159 and 1178 is 19.

GCF(1159,1178) = 19

We will now calculate the prime factors of 1159 and 1178, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1159 and 1178.

How to find the GCF of 1159 and 1178?

We will first find the prime factorization of 1159 and 1178. After we will calculate the factors of 1159 and 1178 and find the biggest common factor number .

Step-1: Prime Factorization of 1159

Prime factors of 1159 are 19, 61. Prime factorization of 1159 in exponential form is:

1159 = 19¹ × 61¹

Step-2: Prime Factorization of 1178

Prime factors of 1178 are 2, 19, 31. Prime factorization of 1178 in exponential form is:

1178 = 2¹ × 19¹ × 31¹

Step-3: Factors of 1159

List of positive integer factors of 1159 that divides 1159 without a remainder.

1, 19, 61

Step-4: Factors of 1178

List of positive integer factors of 1178 that divides 1159 without a remainder.

1, 2, 19, 31, 38, 62, 589

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1159 and 1178. The biggest common factor number is the GCF number.
So the greatest common factor 1159 and 1178 is 19.

Also check out the Least Common Multiple of 1159 and 1178