GCD of 840, 355, 13 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 840, 355, 13 quickly. Get the easiest ways to solve the greatest common divisor of 840, 355, 13 i.e 1 in different methods as follows.
Given Input numbers are 840, 355, 13
In the factoring method, we have to find the divisors of all numbers
Divisors of 840 :
The positive integer divisors of 840 that completely divides 840 are.
1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840
Divisors of 355 :
The positive integer divisors of 355 that completely divides 355 are.
1, 5, 71, 355
Divisors of 13 :
The positive integer divisors of 13 that completely divides 13 are.
1, 13
GCD of numbers is the greatest common divisor
So, the GCD (840, 355, 13) = 1.
Given numbers are 840, 355, 13
The list of prime factors of all numbers are
Prime factors of 840 are 2 x 2 x 2 x 3 x 5 x 7
Prime factors of 355 are 5 x 71
Prime factors of 13 are 13
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 840, 355, 13 using LCM Formula
Given numbers are 840, 355, 13
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(840, 355) = 59640
GCD(840, 355) = ( 840 x 355 ) / 59640
= 840 / 355
= 840
Step2:
LCM(5, 13) = 65
GCD(5, 13) = ( 5 x 13 ) / 65
= 5 / 13
= 5
So, Greatest Common Divisor of 840, 355, 13 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 840, 355, 13
Given numbers are 840, 355, 13
The greatest common divisor of numbers 840, 355, 13 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 840, 355, 13 is 1.
FAQs on GCD of 840, 355, 13 Calculator
1. What is the GCD of 840, 355, 13?
GCD of given numbers 840, 355, 13 is 1
2. How to calculate the greatest common divisor of 840, 355, 13?
We can find the highest common divisor of 840, 355, 13 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 840, 355, 13 i.e 1.
3. How can I use the GCD of 840, 355, 13Calculator?
Out the numbers 840, 355, 13 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.