Online GCD Calculator is useful to find the GCD of 561, 987, 722, 394 quickly. Get the easiest ways to solve the greatest common divisor of 561, 987, 722, 394 i.e 1 in different methods as follows.
Given Input numbers are 561, 987, 722, 394
In the factoring method, we have to find the divisors of all numbers
Divisors of 561 :
The positive integer divisors of 561 that completely divides 561 are.
1, 3, 11, 17, 33, 51, 187, 561
Divisors of 987 :
The positive integer divisors of 987 that completely divides 987 are.
1, 3, 7, 21, 47, 141, 329, 987
Divisors of 722 :
The positive integer divisors of 722 that completely divides 722 are.
1, 2, 19, 38, 361, 722
Divisors of 394 :
The positive integer divisors of 394 that completely divides 394 are.
1, 2, 197, 394
GCD of numbers is the greatest common divisor
So, the GCD (561, 987, 722, 394) = 1.
Given numbers are 561, 987, 722, 394
The list of prime factors of all numbers are
Prime factors of 561 are 3 x 11 x 17
Prime factors of 987 are 3 x 7 x 47
Prime factors of 722 are 2 x 19 x 19
Prime factors of 394 are 2 x 197
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 561, 987, 722, 394
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(561, 987) = 184569
GCD(561, 987) = ( 561 x 987 ) / 184569
= 561 / 987
= 561
Step2:
LCM(3, 722) = 2166
GCD(3, 722) = ( 3 x 722 ) / 2166
= 3 / 722
= 3
Step3:
LCM(1, 394) = 394
GCD(1, 394) = ( 1 x 394 ) / 394
= 1 / 394
= 1
So, Greatest Common Divisor of 561, 987, 722, 394 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 561, 987, 722, 394
The greatest common divisor of numbers 561, 987, 722, 394 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 561, 987, 722, 394 is 1.
1. What is the GCD of 561, 987, 722, 394?
GCD of given numbers 561, 987, 722, 394 is 1
2. How to calculate the greatest common divisor of 561, 987, 722, 394?
We can find the highest common divisor of 561, 987, 722, 394 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 561, 987, 722, 394 i.e 1.
3. How can I use the GCD of 561, 987, 722, 394Calculator?
Out the numbers 561, 987, 722, 394 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.