GCD of 155, 728, 423 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 155, 728, 423 quickly. Get the easiest ways to solve the greatest common divisor of 155, 728, 423 i.e 1 in different methods as follows.
Given Input numbers are 155, 728, 423
In the factoring method, we have to find the divisors of all numbers
Divisors of 155 :
The positive integer divisors of 155 that completely divides 155 are.
1, 5, 31, 155
Divisors of 728 :
The positive integer divisors of 728 that completely divides 728 are.
1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728
Divisors of 423 :
The positive integer divisors of 423 that completely divides 423 are.
1, 3, 9, 47, 141, 423
GCD of numbers is the greatest common divisor
So, the GCD (155, 728, 423) = 1.
Given numbers are 155, 728, 423
The list of prime factors of all numbers are
Prime factors of 155 are 5 x 31
Prime factors of 728 are 2 x 2 x 2 x 7 x 13
Prime factors of 423 are 3 x 3 x 47
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 155, 728, 423 using LCM Formula
Given numbers are 155, 728, 423
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(155, 728) = 112840
GCD(155, 728) = ( 155 x 728 ) / 112840
= 155 / 728
= 155
Step2:
LCM(1, 423) = 423
GCD(1, 423) = ( 1 x 423 ) / 423
= 1 / 423
= 1
So, Greatest Common Divisor of 155, 728, 423 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 155, 728, 423
Given numbers are 155, 728, 423
The greatest common divisor of numbers 155, 728, 423 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 155, 728, 423 is 1.
FAQs on GCD of 155, 728, 423 Calculator
1. What is the GCD of 155, 728, 423?
GCD of given numbers 155, 728, 423 is 1
2. How to calculate the greatest common divisor of 155, 728, 423?
We can find the highest common divisor of 155, 728, 423 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 155, 728, 423 i.e 1.
3. How can I use the GCD of 155, 728, 423Calculator?
Out the numbers 155, 728, 423 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.