GCD of 105, 687, 42, 109 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 105, 687, 42, 109 quickly. Get the easiest ways to solve the greatest common divisor of 105, 687, 42, 109 i.e 1 in different methods as follows.
Given Input numbers are 105, 687, 42, 109
In the factoring method, we have to find the divisors of all numbers
Divisors of 105 :
The positive integer divisors of 105 that completely divides 105 are.
1, 3, 5, 7, 15, 21, 35, 105
Divisors of 687 :
The positive integer divisors of 687 that completely divides 687 are.
1, 3, 229, 687
Divisors of 42 :
The positive integer divisors of 42 that completely divides 42 are.
1, 2, 3, 6, 7, 14, 21, 42
Divisors of 109 :
The positive integer divisors of 109 that completely divides 109 are.
1, 109
GCD of numbers is the greatest common divisor
So, the GCD (105, 687, 42, 109) = 1.
Given numbers are 105, 687, 42, 109
The list of prime factors of all numbers are
Prime factors of 105 are 3 x 5 x 7
Prime factors of 687 are 3 x 229
Prime factors of 42 are 2 x 3 x 7
Prime factors of 109 are 109
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 105, 687, 42, 109 using LCM Formula
Given numbers are 105, 687, 42, 109
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(105, 687) = 24045
GCD(105, 687) = ( 105 x 687 ) / 24045
= 105 / 687
= 105
Step2:
LCM(3, 42) = 42
GCD(3, 42) = ( 3 x 42 ) / 42
= 3 / 42
= 3
Step3:
LCM(3, 109) = 327
GCD(3, 109) = ( 3 x 109 ) / 327
= 3 / 109
= 3
So, Greatest Common Divisor of 105, 687, 42, 109 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 105, 687, 42, 109
Given numbers are 105, 687, 42, 109
The greatest common divisor of numbers 105, 687, 42, 109 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 105, 687, 42, 109 is 1.
FAQs on GCD of 105, 687, 42, 109 Calculator
1. What is the GCD of 105, 687, 42, 109?
GCD of given numbers 105, 687, 42, 109 is 1
2. How to calculate the greatest common divisor of 105, 687, 42, 109?
We can find the highest common divisor of 105, 687, 42, 109 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 105, 687, 42, 109 i.e 1.
3. How can I use the GCD of 105, 687, 42, 109Calculator?
Out the numbers 105, 687, 42, 109 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.