GCD of 665, 420, 143 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 665, 420, 143 quickly. Get the easiest ways to solve the greatest common divisor of 665, 420, 143 i.e 1 in different methods as follows.
Given Input numbers are 665, 420, 143
In the factoring method, we have to find the divisors of all numbers
Divisors of 665 :
The positive integer divisors of 665 that completely divides 665 are.
1, 5, 7, 19, 35, 95, 133, 665
Divisors of 420 :
The positive integer divisors of 420 that completely divides 420 are.
1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
Divisors of 143 :
The positive integer divisors of 143 that completely divides 143 are.
1, 11, 13, 143
GCD of numbers is the greatest common divisor
So, the GCD (665, 420, 143) = 1.
Given numbers are 665, 420, 143
The list of prime factors of all numbers are
Prime factors of 665 are 5 x 7 x 19
Prime factors of 420 are 2 x 2 x 3 x 5 x 7
Prime factors of 143 are 11 x 13
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 665, 420, 143 using LCM Formula
Given numbers are 665, 420, 143
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(665, 420) = 7980
GCD(665, 420) = ( 665 x 420 ) / 7980
= 665 / 420
= 665
Step2:
LCM(35, 143) = 5005
GCD(35, 143) = ( 35 x 143 ) / 5005
= 35 / 143
= 35
So, Greatest Common Divisor of 665, 420, 143 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 665, 420, 143
Given numbers are 665, 420, 143
The greatest common divisor of numbers 665, 420, 143 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 665, 420, 143 is 1.
FAQs on GCD of 665, 420, 143 Calculator
1. What is the GCD of 665, 420, 143?
GCD of given numbers 665, 420, 143 is 1
2. How to calculate the greatest common divisor of 665, 420, 143?
We can find the highest common divisor of 665, 420, 143 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 665, 420, 143 i.e 1.
3. How can I use the GCD of 665, 420, 143Calculator?
Out the numbers 665, 420, 143 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.