GCD of 342, 789, 77, 421 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 342, 789, 77, 421 quickly. Get the easiest ways to solve the greatest common divisor of 342, 789, 77, 421 i.e 1 in different methods as follows.
Given Input numbers are 342, 789, 77, 421
In the factoring method, we have to find the divisors of all numbers
Divisors of 342 :
The positive integer divisors of 342 that completely divides 342 are.
1, 2, 3, 6, 9, 18, 19, 38, 57, 114, 171, 342
Divisors of 789 :
The positive integer divisors of 789 that completely divides 789 are.
1, 3, 263, 789
Divisors of 77 :
The positive integer divisors of 77 that completely divides 77 are.
1, 7, 11, 77
Divisors of 421 :
The positive integer divisors of 421 that completely divides 421 are.
1, 421
GCD of numbers is the greatest common divisor
So, the GCD (342, 789, 77, 421) = 1.
Given numbers are 342, 789, 77, 421
The list of prime factors of all numbers are
Prime factors of 342 are 2 x 3 x 3 x 19
Prime factors of 789 are 3 x 263
Prime factors of 77 are 7 x 11
Prime factors of 421 are 421
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 342, 789, 77, 421 using LCM Formula
Given numbers are 342, 789, 77, 421
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(342, 789) = 89946
GCD(342, 789) = ( 342 x 789 ) / 89946
= 342 / 789
= 342
Step2:
LCM(3, 77) = 231
GCD(3, 77) = ( 3 x 77 ) / 231
= 3 / 77
= 3
Step3:
LCM(1, 421) = 421
GCD(1, 421) = ( 1 x 421 ) / 421
= 1 / 421
= 1
So, Greatest Common Divisor of 342, 789, 77, 421 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 342, 789, 77, 421
Given numbers are 342, 789, 77, 421
The greatest common divisor of numbers 342, 789, 77, 421 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 342, 789, 77, 421 is 1.
FAQs on GCD of 342, 789, 77, 421 Calculator
1. What is the GCD of 342, 789, 77, 421?
GCD of given numbers 342, 789, 77, 421 is 1
2. How to calculate the greatest common divisor of 342, 789, 77, 421?
We can find the highest common divisor of 342, 789, 77, 421 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 342, 789, 77, 421 i.e 1.
3. How can I use the GCD of 342, 789, 77, 421Calculator?
Out the numbers 342, 789, 77, 421 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.