GCD of 287, 178, 380, 689 Calculator

Given Input numbers are 287, 178, 380, 689

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

Divisors of 287 :

The positive integer divisors of 287 that completely divides 287 are.

1, 7, 41, 287

Divisors of 178 :

The positive integer divisors of 178 that completely divides 178 are.

1, 2, 89, 178

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

Divisors of 689 :

The positive integer divisors of 689 that completely divides 689 are.

1, 13, 53, 689

GCD of numbers is the greatest common divisor

So, the GCD (287, 178, 380, 689) = 1.

Given numbers are 287, 178, 380, 689

The list of prime factors of all numbers are

Prime factors of 287 are 7 x 41

Prime factors of 178 are 2 x 89

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

Prime factors of 689 are 13 x 53

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

Given numbers are 287, 178, 380, 689

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

Apply this formula for all numbers.

Step1:

LCM(287, 178) = 51086

GCD(287, 178) = ( 287 x 178 ) / 51086

= 287 / 178

= 287

Step2:

LCM(1, 380) = 380

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

= 1 / 380

= 1

Step3:

LCM(1, 689) = 689

GCD(1, 689) = ( 1 x 689 ) / 689

= 1 / 689

= 1

So, Greatest Common Divisor of 287, 178, 380, 689 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 250, 313, 317, 129
• GCD of 613, 541, 788, 867
• GCD of 706, 293, 344, 361
• GCD of 164, 161, 261, 250
• GCD of 733, 461, 686, 800

Given numbers are 287, 178, 380, 689
The greatest common divisor of numbers 287, 178, 380, 689 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 287, 178, 380, 689 is 1.

1. What is the GCD of 287, 178, 380, 689?

GCD of given numbers 287, 178, 380, 689 is 1

2. How to calculate the greatest common divisor of 287, 178, 380, 689?

We can find the highest common divisor of 287, 178, 380, 689 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 287, 178, 380, 689 i.e 1.

3. How can I use the GCD of 287, 178, 380, 689Calculator?

Out the numbers 287, 178, 380, 689 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.