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 780, 647, 801, 407 i.e. 1 largest integer that divides all the numbers equally.
GCD of 780, 647, 801, 407 is 1
GCD(780, 647, 801, 407) = 1
Ex: 10, 15, 20 (or) 24, 48, 96,45 (or) 78902, 89765, 12345
GCD of numbers 780, 647, 801, 407 is 1
GCD(780, 647, 801, 407) = 1
Given Input numbers are 780, 647, 801, 407
To find the GCD of numbers using factoring list out all the divisors of each number
Divisors of 780
List of positive integer divisors of 780 that divides 780 without a remainder.
1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780
Divisors of 647
List of positive integer divisors of 647 that divides 647 without a remainder.
1, 647
Divisors of 801
List of positive integer divisors of 801 that divides 801 without a remainder.
1, 3, 9, 89, 267, 801
Divisors of 407
List of positive integer divisors of 407 that divides 407 without a remainder.
1, 11, 37, 407
Greatest Common Divisior
We found the divisors of 780, 647, 801, 407 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 780, 647, 801, 407 is 1.
Therefore, GCD of numbers 780, 647, 801, 407 is 1
Given Input Data is 780, 647, 801, 407
Make a list of Prime Factors of all the given numbers initially
Prime Factorization of 780 is 2 x 2 x 3 x 5 x 13
Prime Factorization of 647 is 647
Prime Factorization of 801 is 3 x 3 x 89
Prime Factorization of 407 is 11 x 37
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(780, 647) = 504660
GCD(780, 647) = ( 780 x 647 ) / 504660
GCD(780, 647) = 504660 / 504660
GCD(780, 647) = 1
Step2:
Here we consider the GCD from the above i.e. 1 as first number and the next as 801
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 801) = 801
GCD(1, 801) = ( 1 x 801 ) / 801
GCD(1, 801) = 801 / 801
GCD(1, 801) = 1
Step3:
Here we consider the GCD from the above i.e. 1 as first number and the next as 407
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 407) = 407
GCD(1, 407) = ( 1 x 407 ) / 407
GCD(1, 407) = 407 / 407
GCD(1, 407) = 1
GCD of 780, 647, 801, 407 is 1
Here are some samples of GCD of Numbers calculations.
1. What is the GCD of 780, 647, 801, 407?
GCD of 780, 647, 801, 407 is 1
2. Where do I get the detailed procedure to find GCD of 780, 647, 801, 407?
You can find a detailed procedure to find GCD of 780, 647, 801, 407 on our page.
3. How to find GCD of 780, 647, 801, 407 on a calculator?
You can find the GCD of 780, 647, 801, 407 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.