GCD of 678, 861, 691 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 678, 861, 691 quickly. Get the easiest ways to solve the greatest common divisor of 678, 861, 691 i.e 1 in different methods as follows.
Given Input numbers are 678, 861, 691
In the factoring method, we have to find the divisors of all numbers
Divisors of 678 :
The positive integer divisors of 678 that completely divides 678 are.
1, 2, 3, 6, 113, 226, 339, 678
Divisors of 861 :
The positive integer divisors of 861 that completely divides 861 are.
1, 3, 7, 21, 41, 123, 287, 861
Divisors of 691 :
The positive integer divisors of 691 that completely divides 691 are.
1, 691
GCD of numbers is the greatest common divisor
So, the GCD (678, 861, 691) = 1.
Given numbers are 678, 861, 691
The list of prime factors of all numbers are
Prime factors of 678 are 2 x 3 x 113
Prime factors of 861 are 3 x 7 x 41
Prime factors of 691 are 691
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 678, 861, 691 using LCM Formula
Given numbers are 678, 861, 691
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(678, 861) = 194586
GCD(678, 861) = ( 678 x 861 ) / 194586
= 678 / 861
= 678
Step2:
LCM(3, 691) = 2073
GCD(3, 691) = ( 3 x 691 ) / 2073
= 3 / 691
= 3
So, Greatest Common Divisor of 678, 861, 691 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 678, 861, 691
Given numbers are 678, 861, 691
The greatest common divisor of numbers 678, 861, 691 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 678, 861, 691 is 1.
FAQs on GCD of 678, 861, 691 Calculator
1. What is the GCD of 678, 861, 691?
GCD of given numbers 678, 861, 691 is 1
2. How to calculate the greatest common divisor of 678, 861, 691?
We can find the highest common divisor of 678, 861, 691 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 678, 861, 691 i.e 1.
3. How can I use the GCD of 678, 861, 691Calculator?
Out the numbers 678, 861, 691 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.