What is the Greatest Common Factor of 1170 and 1179?

Greatest common factor (GCF) of 1170 and 1179 is 9.

GCF(1170,1179) = 9

We will now calculate the prime factors of 1170 and 1179, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1170 and 1179.

How to find the GCF of 1170 and 1179?

We will first find the prime factorization of 1170 and 1179. After we will calculate the factors of 1170 and 1179 and find the biggest common factor number .

Step-1: Prime Factorization of 1170

Prime factors of 1170 are 2, 3, 5, 13. Prime factorization of 1170 in exponential form is:

1170 = 2¹ × 3² × 5¹ × 13¹

Step-2: Prime Factorization of 1179

Prime factors of 1179 are 3, 131. Prime factorization of 1179 in exponential form is:

1179 = 3² × 131¹

Step-3: Factors of 1170

List of positive integer factors of 1170 that divides 1170 without a remainder.

1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 90, 117, 130, 195, 234, 390, 585

Step-4: Factors of 1179

List of positive integer factors of 1179 that divides 1170 without a remainder.

1, 3, 9, 131, 393

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1170 and 1179. The biggest common factor number is the GCF number.
So the greatest common factor 1170 and 1179 is 9.

Also check out the Least Common Multiple of 1170 and 1179