GCD of 687, 618, 638 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 687, 618, 638 quickly. Get the easiest ways to solve the greatest common divisor of 687, 618, 638 i.e 1 in different methods as follows.
Given Input numbers are 687, 618, 638
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 618 :
The positive integer divisors of 618 that completely divides 618 are.
1, 2, 3, 6, 103, 206, 309, 618
Divisors of 638 :
The positive integer divisors of 638 that completely divides 638 are.
1, 2, 11, 22, 29, 58, 319, 638
GCD of numbers is the greatest common divisor
So, the GCD (687, 618, 638) = 1.
Given numbers are 687, 618, 638
The list of prime factors of all numbers are
Prime factors of 687 are 3 x 229
Prime factors of 618 are 2 x 3 x 103
Prime factors of 638 are 2 x 11 x 29
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 687, 618, 638 using LCM Formula
Given numbers are 687, 618, 638
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(687, 618) = 141522
GCD(687, 618) = ( 687 x 618 ) / 141522
= 687 / 618
= 687
Step2:
LCM(3, 638) = 1914
GCD(3, 638) = ( 3 x 638 ) / 1914
= 3 / 638
= 3
So, Greatest Common Divisor of 687, 618, 638 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 687, 618, 638
Given numbers are 687, 618, 638
The greatest common divisor of numbers 687, 618, 638 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 687, 618, 638 is 1.
FAQs on GCD of 687, 618, 638 Calculator
1. What is the GCD of 687, 618, 638?
GCD of given numbers 687, 618, 638 is 1
2. How to calculate the greatest common divisor of 687, 618, 638?
We can find the highest common divisor of 687, 618, 638 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, 618, 638 i.e 1.
3. How can I use the GCD of 687, 618, 638Calculator?
Out the numbers 687, 618, 638 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.