GCD of 788, 821, 380, 649 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 788, 821, 380, 649 quickly. Get the easiest ways to solve the greatest common divisor of 788, 821, 380, 649 i.e 1 in different methods as follows.
Given Input numbers are 788, 821, 380, 649
In the factoring method, we have to find the divisors of all numbers
Divisors of 788 :
The positive integer divisors of 788 that completely divides 788 are.
1, 2, 4, 197, 394, 788
Divisors of 821 :
The positive integer divisors of 821 that completely divides 821 are.
1, 821
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 649 :
The positive integer divisors of 649 that completely divides 649 are.
1, 11, 59, 649
GCD of numbers is the greatest common divisor
So, the GCD (788, 821, 380, 649) = 1.
Given numbers are 788, 821, 380, 649
The list of prime factors of all numbers are
Prime factors of 788 are 2 x 2 x 197
Prime factors of 821 are 821
Prime factors of 380 are 2 x 2 x 5 x 19
Prime factors of 649 are 11 x 59
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 788, 821, 380, 649 using LCM Formula
Given numbers are 788, 821, 380, 649
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(788, 821) = 646948
GCD(788, 821) = ( 788 x 821 ) / 646948
= 788 / 821
= 788
Step2:
LCM(1, 380) = 380
GCD(1, 380) = ( 1 x 380 ) / 380
= 1 / 380
= 1
Step3:
LCM(1, 649) = 649
GCD(1, 649) = ( 1 x 649 ) / 649
= 1 / 649
= 1
So, Greatest Common Divisor of 788, 821, 380, 649 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 788, 821, 380, 649
Given numbers are 788, 821, 380, 649
The greatest common divisor of numbers 788, 821, 380, 649 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 788, 821, 380, 649 is 1.
FAQs on GCD of 788, 821, 380, 649 Calculator
1. What is the GCD of 788, 821, 380, 649?
GCD of given numbers 788, 821, 380, 649 is 1
2. How to calculate the greatest common divisor of 788, 821, 380, 649?
We can find the highest common divisor of 788, 821, 380, 649 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 788, 821, 380, 649 i.e 1.
3. How can I use the GCD of 788, 821, 380, 649Calculator?
Out the numbers 788, 821, 380, 649 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.