GCD of 687, 691, 380 Calculator

Given Input numbers are 687, 691, 380

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

Divisors of 687 :

The positive integer divisors of 687 that completely divides 687 are.

1, 3, 229, 687

Divisors of 691 :

The positive integer divisors of 691 that completely divides 691 are.

1, 691

Divisors of 380 :

The positive integer divisors of 380 that completely divides 380 are.

1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380

GCD of numbers is the greatest common divisor

So, the GCD (687, 691, 380) = 1.

Given numbers are 687, 691, 380

The list of prime factors of all numbers are

Prime factors of 687 are 3 x 229

Prime factors of 691 are 691

Prime factors of 380 are 2 x 2 x 5 x 19

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

Given numbers are 687, 691, 380

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

Apply this formula for all numbers.

Step1:

LCM(687, 691) = 474717

GCD(687, 691) = ( 687 x 691 ) / 474717

= 687 / 691

= 687

Step2:

LCM(1, 380) = 380

GCD(1, 380) = ( 1 x 380 ) / 380

= 1 / 380

= 1

So, Greatest Common Divisor of 687, 691, 380 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 401, 364, 612
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Given numbers are 687, 691, 380
The greatest common divisor of numbers 687, 691, 380 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 687, 691, 380 is 1.

1. What is the GCD of 687, 691, 380?

GCD of given numbers 687, 691, 380 is 1

2. How to calculate the greatest common divisor of 687, 691, 380?

We can find the highest common divisor of 687, 691, 380 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 687, 691, 380 i.e 1.

3. How can I use the GCD of 687, 691, 380Calculator?

Out the numbers 687, 691, 380 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.