GCD of 438, 315, 784 Calculator
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Online GCD Calculator is useful to find the GCD of 438, 315, 784 quickly. Get the easiest ways to solve the greatest common divisor of 438, 315, 784 i.e 1 in different methods as follows.
Given Input numbers are 438, 315, 784
In the factoring method, we have to find the divisors of all numbers
Divisors of 438 :
The positive integer divisors of 438 that completely divides 438 are.
1, 2, 3, 6, 73, 146, 219, 438
Divisors of 315 :
The positive integer divisors of 315 that completely divides 315 are.
1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 105, 315
Divisors of 784 :
The positive integer divisors of 784 that completely divides 784 are.
1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
GCD of numbers is the greatest common divisor
So, the GCD (438, 315, 784) = 1.
Given numbers are 438, 315, 784
The list of prime factors of all numbers are
Prime factors of 438 are 2 x 3 x 73
Prime factors of 315 are 3 x 3 x 5 x 7
Prime factors of 784 are 2 x 2 x 2 x 2 x 7 x 7
The above numbers do not have any common prime factor. So GCD is 1
Steps to Calculate GCD of 438, 315, 784 using LCM Formula
Given numbers are 438, 315, 784
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(438, 315) = 45990
GCD(438, 315) = ( 438 x 315 ) / 45990
= 438 / 315
= 438
Step2:
LCM(3, 784) = 2352
GCD(3, 784) = ( 3 x 784 ) / 2352
= 3 / 784
= 3
So, Greatest Common Divisor of 438, 315, 784 is 1
GCD of Numbers Calculation Examples
Here are some samples of GCD of Numbers calculations.
Greatest Common Divisor of 438, 315, 784
Given numbers are 438, 315, 784
The greatest common divisor of numbers 438, 315, 784 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 438, 315, 784 is 1.
FAQs on GCD of 438, 315, 784 Calculator
1. What is the GCD of 438, 315, 784?
GCD of given numbers 438, 315, 784 is 1
2. How to calculate the greatest common divisor of 438, 315, 784?
We can find the highest common divisor of 438, 315, 784 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 438, 315, 784 i.e 1.
3. How can I use the GCD of 438, 315, 784Calculator?
Out the numbers 438, 315, 784 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.