What is the Greatest Common Factor of 365 and 380?

Greatest common factor (GCF) of 365 and 380 is 5.

GCF(365,380) = 5

We will now calculate the prime factors of 365 and 380, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 365 and 380.

How to find the GCF of 365 and 380?

We will first find the prime factorization of 365 and 380. After we will calculate the factors of 365 and 380 and find the biggest common factor number .

Step-1: Prime Factorization of 365

Prime factors of 365 are 5, 73. Prime factorization of 365 in exponential form is:

365 = 5¹ × 73¹

Step-2: Prime Factorization of 380

Prime factors of 380 are 2, 5, 19. Prime factorization of 380 in exponential form is:

380 = 2² × 5¹ × 19¹

Step-3: Factors of 365

List of positive integer factors of 365 that divides 365 without a remainder.

1, 5, 73

Step-4: Factors of 380

List of positive integer factors of 380 that divides 365 without a remainder.

1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 365 and 380. The biggest common factor number is the GCF number.
So the greatest common factor 365 and 380 is 5.

Also check out the Least Common Multiple of 365 and 380