GCD of 381, 649, 820 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 381, 649, 820 quickly. Get the easiest ways to solve the greatest common divisor of 381, 649, 820 i.e 1 in different methods as follows.
Given Input numbers are 381, 649, 820
In the factoring method, we have to find the divisors of all numbers
Divisors of 381 :
The positive integer divisors of 381 that completely divides 381 are.
1, 3, 127, 381
Divisors of 649 :
The positive integer divisors of 649 that completely divides 649 are.
1, 11, 59, 649
Divisors of 820 :
The positive integer divisors of 820 that completely divides 820 are.
1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820
GCD of numbers is the greatest common divisor
So, the GCD (381, 649, 820) = 1.
Given numbers are 381, 649, 820
The list of prime factors of all numbers are
Prime factors of 381 are 3 x 127
Prime factors of 649 are 11 x 59
Prime factors of 820 are 2 x 2 x 5 x 41
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 381, 649, 820 using LCM Formula
Given numbers are 381, 649, 820
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(381, 649) = 247269
GCD(381, 649) = ( 381 x 649 ) / 247269
= 381 / 649
= 381
Step2:
LCM(1, 820) = 820
GCD(1, 820) = ( 1 x 820 ) / 820
= 1 / 820
= 1
So, Greatest Common Divisor of 381, 649, 820 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 381, 649, 820
Given numbers are 381, 649, 820
The greatest common divisor of numbers 381, 649, 820 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 381, 649, 820 is 1.
FAQs on GCD of 381, 649, 820 Calculator
1. What is the GCD of 381, 649, 820?
GCD of given numbers 381, 649, 820 is 1
2. How to calculate the greatest common divisor of 381, 649, 820?
We can find the highest common divisor of 381, 649, 820 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 381, 649, 820 i.e 1.
3. How can I use the GCD of 381, 649, 820Calculator?
Out the numbers 381, 649, 820 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.