What is the Greatest Common Factor of 1180 and 1200?

Greatest common factor (GCF) of 1180 and 1200 is 20.

GCF(1180,1200) = 20

We will now calculate the prime factors of 1180 and 1200, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 1180 and 1200.

How to find the GCF of 1180 and 1200?

We will first find the prime factorization of 1180 and 1200. After we will calculate the factors of 1180 and 1200 and find the biggest common factor number .

Step-1: Prime Factorization of 1180

Prime factors of 1180 are 2, 5, 59. Prime factorization of 1180 in exponential form is:

1180 = 2² × 5¹ × 59¹

Step-2: Prime Factorization of 1200

Prime factors of 1200 are 2, 3, 5. Prime factorization of 1200 in exponential form is:

1200 = 2⁴ × 3¹ × 5²

Step-3: Factors of 1180

List of positive integer factors of 1180 that divides 1180 without a remainder.

1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590

Step-4: Factors of 1200

List of positive integer factors of 1200 that divides 1180 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 48, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 600

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 1180 and 1200. The biggest common factor number is the GCF number.
So the greatest common factor 1180 and 1200 is 20.

Also check out the Least Common Multiple of 1180 and 1200