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 420, 261, 53, 347 i.e. 1 largest integer that divides all the numbers equally.
GCD of 420, 261, 53, 347 is 1
GCD(420, 261, 53, 347) = 1
Ex: 10, 15, 20 (or) 24, 48, 96,45 (or) 78902, 89765, 12345
GCD of numbers 420, 261, 53, 347 is 1
GCD(420, 261, 53, 347) = 1
Given Input numbers are 420, 261, 53, 347
To find the GCD of numbers using factoring list out all the divisors of each number
Divisors of 420
List of positive integer divisors of 420 that divides 420 without a remainder.
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 261
List of positive integer divisors of 261 that divides 261 without a remainder.
1, 3, 9, 29, 87, 261
Divisors of 53
List of positive integer divisors of 53 that divides 53 without a remainder.
1, 53
Divisors of 347
List of positive integer divisors of 347 that divides 347 without a remainder.
1, 347
Greatest Common Divisior
We found the divisors of 420, 261, 53, 347 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 420, 261, 53, 347 is 1.
Therefore, GCD of numbers 420, 261, 53, 347 is 1
Given Input Data is 420, 261, 53, 347
Make a list of Prime Factors of all the given numbers initially
Prime Factorization of 420 is 2 x 2 x 3 x 5 x 7
Prime Factorization of 261 is 3 x 3 x 29
Prime Factorization of 53 is 53
Prime Factorization of 347 is 347
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(420, 261) = 36540
GCD(420, 261) = ( 420 x 261 ) / 36540
GCD(420, 261) = 109620 / 36540
GCD(420, 261) = 3
Step2:
Here we consider the GCD from the above i.e. 3 as first number and the next as 53
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(3, 53) = 159
GCD(3, 53) = ( 3 x 53 ) / 159
GCD(3, 53) = 159 / 159
GCD(3, 53) = 1
Step3:
Here we consider the GCD from the above i.e. 1 as first number and the next as 347
The formula of GCD is GCD(a, b) = ( a x b) / LCM(a, b)
LCM(1, 347) = 347
GCD(1, 347) = ( 1 x 347 ) / 347
GCD(1, 347) = 347 / 347
GCD(1, 347) = 1
GCD of 420, 261, 53, 347 is 1
Here are some samples of GCD of Numbers calculations.
1. What is the GCD of 420, 261, 53, 347?
GCD of 420, 261, 53, 347 is 1
2. Where do I get the detailed procedure to find GCD of 420, 261, 53, 347?
You can find a detailed procedure to find GCD of 420, 261, 53, 347 on our page.
3. How to find GCD of 420, 261, 53, 347 on a calculator?
You can find the GCD of 420, 261, 53, 347 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.