GCD of 687, 709, 389, 655 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 687, 709, 389, 655 quickly. Get the easiest ways to solve the greatest common divisor of 687, 709, 389, 655 i.e 1 in different methods as follows.
Given Input numbers are 687, 709, 389, 655
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 709 :
The positive integer divisors of 709 that completely divides 709 are.
1, 709
Divisors of 389 :
The positive integer divisors of 389 that completely divides 389 are.
1, 389
Divisors of 655 :
The positive integer divisors of 655 that completely divides 655 are.
1, 5, 131, 655
GCD of numbers is the greatest common divisor
So, the GCD (687, 709, 389, 655) = 1.
Given numbers are 687, 709, 389, 655
The list of prime factors of all numbers are
Prime factors of 687 are 3 x 229
Prime factors of 709 are 709
Prime factors of 389 are 389
Prime factors of 655 are 5 x 131
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 687, 709, 389, 655 using LCM Formula
Given numbers are 687, 709, 389, 655
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(687, 709) = 487083
GCD(687, 709) = ( 687 x 709 ) / 487083
= 687 / 709
= 687
Step2:
LCM(1, 389) = 389
GCD(1, 389) = ( 1 x 389 ) / 389
= 1 / 389
= 1
Step3:
LCM(1, 655) = 655
GCD(1, 655) = ( 1 x 655 ) / 655
= 1 / 655
= 1
So, Greatest Common Divisor of 687, 709, 389, 655 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 687, 709, 389, 655
Given numbers are 687, 709, 389, 655
The greatest common divisor of numbers 687, 709, 389, 655 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 687, 709, 389, 655 is 1.
FAQs on GCD of 687, 709, 389, 655 Calculator
1. What is the GCD of 687, 709, 389, 655?
GCD of given numbers 687, 709, 389, 655 is 1
2. How to calculate the greatest common divisor of 687, 709, 389, 655?
We can find the highest common divisor of 687, 709, 389, 655 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, 709, 389, 655 i.e 1.
3. How can I use the GCD of 687, 709, 389, 655Calculator?
Out the numbers 687, 709, 389, 655 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.