Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Make use of GCD Calculator to determine the Greatest Common Divisor of 391, 432, 74, 783 i.e. 1 largest integer that divides all the numbers equally.
GCD of 391, 432, 74, 783 is 1
GCD(391, 432, 74, 783) = 1
Ex: 10, 15, 20 (or) 24, 48, 96,45 (or) 78902, 89765, 12345
GCD of numbers 391, 432, 74, 783 is 1
GCD(391, 432, 74, 783) = 1
Given Input numbers are 391, 432, 74, 783
To find the GCD of numbers using factoring list out all the divisors of each number
Divisors of 391
List of positive integer divisors of 391 that divides 391 without a remainder.
1, 17, 23, 391
Divisors of 432
List of positive integer divisors of 432 that divides 432 without a remainder.
1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432
Divisors of 74
List of positive integer divisors of 74 that divides 74 without a remainder.
1, 2, 37, 74
Divisors of 783
List of positive integer divisors of 783 that divides 783 without a remainder.
1, 3, 9, 27, 29, 87, 261, 783
Greatest Common Divisior
We found the divisors of 391, 432, 74, 783 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 391, 432, 74, 783 is 1.
Therefore, GCD of numbers 391, 432, 74, 783 is 1
Given Input Data is 391, 432, 74, 783
Make a list of Prime Factors of all the given numbers initially
Prime Factorization of 391 is 17 x 23
Prime Factorization of 432 is 2 x 2 x 2 x 2 x 3 x 3 x 3
Prime Factorization of 74 is 2 x 37
Prime Factorization of 783 is 3 x 3 x 3 x 29
The above numbers do not have any common prime factor. So GCD is 1
Step1:
Let's calculate the GCD of first two numbers
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(391, 432) = 168912
GCD(391, 432) = ( 391 x 432 ) / 168912
GCD(391, 432) = 168912 / 168912
GCD(391, 432) = 1
Step2:
Here we consider the GCD from the above i.e. 1 as first number and the next as 74
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 74) = 74
GCD(1, 74) = ( 1 x 74 ) / 74
GCD(1, 74) = 74 / 74
GCD(1, 74) = 1
Step3:
Here we consider the GCD from the above i.e. 1 as first number and the next as 783
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 783) = 783
GCD(1, 783) = ( 1 x 783 ) / 783
GCD(1, 783) = 783 / 783
GCD(1, 783) = 1
GCD of 391, 432, 74, 783 is 1
Here are some samples of GCD of Numbers calculations.
1. What is the GCD of 391, 432, 74, 783?
GCD of 391, 432, 74, 783 is 1
2. Where do I get the detailed procedure to find GCD of 391, 432, 74, 783?
You can find a detailed procedure to find GCD of 391, 432, 74, 783 on our page.
3. How to find GCD of 391, 432, 74, 783 on a calculator?
You can find the GCD of 391, 432, 74, 783 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.