GCD of 390, 187, 991, 389 Calculator

Given Input numbers are 390, 187, 991, 389

In the factoring method, we have to find the divisors of all numbers

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

Divisors of 187 :

The positive integer divisors of 187 that completely divides 187 are.

1, 11, 17, 187

Divisors of 991 :

The positive integer divisors of 991 that completely divides 991 are.

1, 991

Divisors of 389 :

The positive integer divisors of 389 that completely divides 389 are.

1, 389

GCD of numbers is the greatest common divisor

So, the GCD (390, 187, 991, 389) = 1.

Given numbers are 390, 187, 991, 389

The list of prime factors of all numbers are

Prime factors of 390 are 2 x 3 x 5 x 13

Prime factors of 187 are 11 x 17

Prime factors of 991 are 991

Prime factors of 389 are 389

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 390, 187, 991, 389

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(390, 187) = 72930

GCD(390, 187) = ( 390 x 187 ) / 72930

= 390 / 187

= 390

Step2:

LCM(1, 991) = 991

GCD(1, 991) = ( 1 x 991 ) / 991

= 1 / 991

= 1

Step3:

LCM(1, 389) = 389

GCD(1, 389) = ( 1 x 389 ) / 389

= 1 / 389

= 1

So, Greatest Common Divisor of 390, 187, 991, 389 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 212, 507, 438, 459
• GCD of 721, 169, 474, 646
• GCD of 380, 599, 787, 218
• GCD of 317, 173, 131, 819
• GCD of 998, 224, 162, 932

Given numbers are 390, 187, 991, 389
The greatest common divisor of numbers 390, 187, 991, 389 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 390, 187, 991, 389 is 1.

1. What is the GCD of 390, 187, 991, 389?

GCD of given numbers 390, 187, 991, 389 is 1

2. How to calculate the greatest common divisor of 390, 187, 991, 389?

We can find the highest common divisor of 390, 187, 991, 389 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 390, 187, 991, 389 i.e 1.

3. How can I use the GCD of 390, 187, 991, 389Calculator?

Out the numbers 390, 187, 991, 389 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.