GCD of 165, 647, 42 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 165, 647, 42 quickly. Get the easiest ways to solve the greatest common divisor of 165, 647, 42 i.e 1 in different methods as follows.
Given Input numbers are 165, 647, 42
In the factoring method, we have to find the divisors of all numbers
Divisors of 165 :
The positive integer divisors of 165 that completely divides 165 are.
1, 3, 5, 11, 15, 33, 55, 165
Divisors of 647 :
The positive integer divisors of 647 that completely divides 647 are.
1, 647
Divisors of 42 :
The positive integer divisors of 42 that completely divides 42 are.
1, 2, 3, 6, 7, 14, 21, 42
GCD of numbers is the greatest common divisor
So, the GCD (165, 647, 42) = 1.
Given numbers are 165, 647, 42
The list of prime factors of all numbers are
Prime factors of 165 are 3 x 5 x 11
Prime factors of 647 are 647
Prime factors of 42 are 2 x 3 x 7
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 165, 647, 42 using LCM Formula
Given numbers are 165, 647, 42
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(165, 647) = 106755
GCD(165, 647) = ( 165 x 647 ) / 106755
= 165 / 647
= 165
Step2:
LCM(1, 42) = 42
GCD(1, 42) = ( 1 x 42 ) / 42
= 1 / 42
= 1
So, Greatest Common Divisor of 165, 647, 42 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 165, 647, 42
Given numbers are 165, 647, 42
The greatest common divisor of numbers 165, 647, 42 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 165, 647, 42 is 1.
FAQs on GCD of 165, 647, 42 Calculator
1. What is the GCD of 165, 647, 42?
GCD of given numbers 165, 647, 42 is 1
2. How to calculate the greatest common divisor of 165, 647, 42?
We can find the highest common divisor of 165, 647, 42 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 165, 647, 42 i.e 1.
3. How can I use the GCD of 165, 647, 42Calculator?
Out the numbers 165, 647, 42 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.