Online GCD Calculator is useful to find the GCD of 821, 388, 309, 613 quickly. Get the easiest ways to solve the greatest common divisor of 821, 388, 309, 613 i.e 1 in different methods as follows.
Given Input numbers are 821, 388, 309, 613
In the factoring method, we have to find the divisors of all numbers
Divisors of 821 :
The positive integer divisors of 821 that completely divides 821 are.
1, 821
Divisors of 388 :
The positive integer divisors of 388 that completely divides 388 are.
1, 2, 4, 97, 194, 388
Divisors of 309 :
The positive integer divisors of 309 that completely divides 309 are.
1, 3, 103, 309
Divisors of 613 :
The positive integer divisors of 613 that completely divides 613 are.
1, 613
GCD of numbers is the greatest common divisor
So, the GCD (821, 388, 309, 613) = 1.
Given numbers are 821, 388, 309, 613
The list of prime factors of all numbers are
Prime factors of 821 are 821
Prime factors of 388 are 2 x 2 x 97
Prime factors of 309 are 3 x 103
Prime factors of 613 are 613
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 821, 388, 309, 613
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(821, 388) = 318548
GCD(821, 388) = ( 821 x 388 ) / 318548
= 821 / 388
= 821
Step2:
LCM(1, 309) = 309
GCD(1, 309) = ( 1 x 309 ) / 309
= 1 / 309
= 1
Step3:
LCM(1, 613) = 613
GCD(1, 613) = ( 1 x 613 ) / 613
= 1 / 613
= 1
So, Greatest Common Divisor of 821, 388, 309, 613 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 821, 388, 309, 613
The greatest common divisor of numbers 821, 388, 309, 613 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 821, 388, 309, 613 is 1.
1. What is the GCD of 821, 388, 309, 613?
GCD of given numbers 821, 388, 309, 613 is 1
2. How to calculate the greatest common divisor of 821, 388, 309, 613?
We can find the highest common divisor of 821, 388, 309, 613 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 821, 388, 309, 613 i.e 1.
3. How can I use the GCD of 821, 388, 309, 613Calculator?
Out the numbers 821, 388, 309, 613 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.