Online GCD Calculator is useful to find the GCD of 720, 381, 605, 385 quickly. Get the easiest ways to solve the greatest common divisor of 720, 381, 605, 385 i.e 1 in different methods as follows.
Given Input numbers are 720, 381, 605, 385
In the factoring method, we have to find the divisors of all numbers
Divisors of 720 :
The positive integer divisors of 720 that completely divides 720 are.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
Divisors of 381 :
The positive integer divisors of 381 that completely divides 381 are.
1, 3, 127, 381
Divisors of 605 :
The positive integer divisors of 605 that completely divides 605 are.
1, 5, 11, 55, 121, 605
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 (720, 381, 605, 385) = 1.
Given numbers are 720, 381, 605, 385
The list of prime factors of all numbers are
Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5
Prime factors of 381 are 3 x 127
Prime factors of 605 are 5 x 11 x 11
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 720, 381, 605, 385
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(720, 381) = 91440
GCD(720, 381) = ( 720 x 381 ) / 91440
= 720 / 381
= 720
Step2:
LCM(3, 605) = 1815
GCD(3, 605) = ( 3 x 605 ) / 1815
= 3 / 605
= 3
Step3:
LCM(1, 385) = 385
GCD(1, 385) = ( 1 x 385 ) / 385
= 1 / 385
= 1
So, Greatest Common Divisor of 720, 381, 605, 385 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 720, 381, 605, 385
The greatest common divisor of numbers 720, 381, 605, 385 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 720, 381, 605, 385 is 1.
1. What is the GCD of 720, 381, 605, 385?
GCD of given numbers 720, 381, 605, 385 is 1
2. How to calculate the greatest common divisor of 720, 381, 605, 385?
We can find the highest common divisor of 720, 381, 605, 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 720, 381, 605, 385 i.e 1.
3. How can I use the GCD of 720, 381, 605, 385Calculator?
Out the numbers 720, 381, 605, 385 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.