GCD of 421, 642, 400 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 421, 642, 400 quickly. Get the easiest ways to solve the greatest common divisor of 421, 642, 400 i.e 1 in different methods as follows.
Given Input numbers are 421, 642, 400
In the factoring method, we have to find the divisors of all numbers
Divisors of 421 :
The positive integer divisors of 421 that completely divides 421 are.
1, 421
Divisors of 642 :
The positive integer divisors of 642 that completely divides 642 are.
1, 2, 3, 6, 107, 214, 321, 642
Divisors of 400 :
The positive integer divisors of 400 that completely divides 400 are.
1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
GCD of numbers is the greatest common divisor
So, the GCD (421, 642, 400) = 1.
Given numbers are 421, 642, 400
The list of prime factors of all numbers are
Prime factors of 421 are 421
Prime factors of 642 are 2 x 3 x 107
Prime factors of 400 are 2 x 2 x 2 x 2 x 5 x 5
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 421, 642, 400 using LCM Formula
Given numbers are 421, 642, 400
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(421, 642) = 270282
GCD(421, 642) = ( 421 x 642 ) / 270282
= 421 / 642
= 421
Step2:
LCM(1, 400) = 400
GCD(1, 400) = ( 1 x 400 ) / 400
= 1 / 400
= 1
So, Greatest Common Divisor of 421, 642, 400 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 421, 642, 400
Given numbers are 421, 642, 400
The greatest common divisor of numbers 421, 642, 400 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 421, 642, 400 is 1.
FAQs on GCD of 421, 642, 400 Calculator
1. What is the GCD of 421, 642, 400?
GCD of given numbers 421, 642, 400 is 1
2. How to calculate the greatest common divisor of 421, 642, 400?
We can find the highest common divisor of 421, 642, 400 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 421, 642, 400 i.e 1.
3. How can I use the GCD of 421, 642, 400Calculator?
Out the numbers 421, 642, 400 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.