GCD of 651, 961, 391, 665 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 651, 961, 391, 665 quickly. Get the easiest ways to solve the greatest common divisor of 651, 961, 391, 665 i.e 1 in different methods as follows.
Given Input numbers are 651, 961, 391, 665
In the factoring method, we have to find the divisors of all numbers
Divisors of 651 :
The positive integer divisors of 651 that completely divides 651 are.
1, 3, 7, 21, 31, 93, 217, 651
Divisors of 961 :
The positive integer divisors of 961 that completely divides 961 are.
1, 31, 961
Divisors of 391 :
The positive integer divisors of 391 that completely divides 391 are.
1, 17, 23, 391
Divisors of 665 :
The positive integer divisors of 665 that completely divides 665 are.
1, 5, 7, 19, 35, 95, 133, 665
GCD of numbers is the greatest common divisor
So, the GCD (651, 961, 391, 665) = 1.
Given numbers are 651, 961, 391, 665
The list of prime factors of all numbers are
Prime factors of 651 are 3 x 7 x 31
Prime factors of 961 are 31 x 31
Prime factors of 391 are 17 x 23
Prime factors of 665 are 5 x 7 x 19
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 651, 961, 391, 665 using LCM Formula
Given numbers are 651, 961, 391, 665
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(651, 961) = 20181
GCD(651, 961) = ( 651 x 961 ) / 20181
= 651 / 961
= 651
Step2:
LCM(31, 391) = 12121
GCD(31, 391) = ( 31 x 391 ) / 12121
= 31 / 391
= 31
Step3:
LCM(1, 665) = 665
GCD(1, 665) = ( 1 x 665 ) / 665
= 1 / 665
= 1
So, Greatest Common Divisor of 651, 961, 391, 665 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 651, 961, 391, 665
Given numbers are 651, 961, 391, 665
The greatest common divisor of numbers 651, 961, 391, 665 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 651, 961, 391, 665 is 1.
FAQs on GCD of 651, 961, 391, 665 Calculator
1. What is the GCD of 651, 961, 391, 665?
GCD of given numbers 651, 961, 391, 665 is 1
2. How to calculate the greatest common divisor of 651, 961, 391, 665?
We can find the highest common divisor of 651, 961, 391, 665 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 651, 961, 391, 665 i.e 1.
3. How can I use the GCD of 651, 961, 391, 665Calculator?
Out the numbers 651, 961, 391, 665 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.