Online GCD Calculator is useful to find the GCD of 561, 905, 448, 385 quickly. Get the easiest ways to solve the greatest common divisor of 561, 905, 448, 385 i.e 1 in different methods as follows.
Given Input numbers are 561, 905, 448, 385
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 905 :
The positive integer divisors of 905 that completely divides 905 are.
1, 5, 181, 905
Divisors of 448 :
The positive integer divisors of 448 that completely divides 448 are.
1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448
Divisors of 385 :
The positive integer divisors of 385 that completely divides 385 are.
1, 5, 7, 11, 35, 55, 77, 385
GCD of numbers is the greatest common divisor
So, the GCD (561, 905, 448, 385) = 1.
Given numbers are 561, 905, 448, 385
The list of prime factors of all numbers are
Prime factors of 561 are 3 x 11 x 17
Prime factors of 905 are 5 x 181
Prime factors of 448 are 2 x 2 x 2 x 2 x 2 x 2 x 7
Prime factors of 385 are 5 x 7 x 11
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 561, 905, 448, 385
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(561, 905) = 507705
GCD(561, 905) = ( 561 x 905 ) / 507705
= 561 / 905
= 561
Step2:
LCM(1, 448) = 448
GCD(1, 448) = ( 1 x 448 ) / 448
= 1 / 448
= 1
Step3:
LCM(1, 385) = 385
GCD(1, 385) = ( 1 x 385 ) / 385
= 1 / 385
= 1
So, Greatest Common Divisor of 561, 905, 448, 385 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 561, 905, 448, 385
The greatest common divisor of numbers 561, 905, 448, 385 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 561, 905, 448, 385 is 1.
1. What is the GCD of 561, 905, 448, 385?
GCD of given numbers 561, 905, 448, 385 is 1
2. How to calculate the greatest common divisor of 561, 905, 448, 385?
We can find the highest common divisor of 561, 905, 448, 385 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, 905, 448, 385 i.e 1.
3. How can I use the GCD of 561, 905, 448, 385Calculator?
Out the numbers 561, 905, 448, 385 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.