Online GCD Calculator is useful to find the GCD of 387, 691, 705, 231 quickly. Get the easiest ways to solve the greatest common divisor of 387, 691, 705, 231 i.e 1 in different methods as follows.
Given Input numbers are 387, 691, 705, 231
In the factoring method, we have to find the divisors of all numbers
Divisors of 387 :
The positive integer divisors of 387 that completely divides 387 are.
1, 3, 9, 43, 129, 387
Divisors of 691 :
The positive integer divisors of 691 that completely divides 691 are.
1, 691
Divisors of 705 :
The positive integer divisors of 705 that completely divides 705 are.
1, 3, 5, 15, 47, 141, 235, 705
Divisors of 231 :
The positive integer divisors of 231 that completely divides 231 are.
1, 3, 7, 11, 21, 33, 77, 231
GCD of numbers is the greatest common divisor
So, the GCD (387, 691, 705, 231) = 1.
Given numbers are 387, 691, 705, 231
The list of prime factors of all numbers are
Prime factors of 387 are 3 x 3 x 43
Prime factors of 691 are 691
Prime factors of 705 are 3 x 5 x 47
Prime factors of 231 are 3 x 7 x 11
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 387, 691, 705, 231
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(387, 691) = 267417
GCD(387, 691) = ( 387 x 691 ) / 267417
= 387 / 691
= 387
Step2:
LCM(1, 705) = 705
GCD(1, 705) = ( 1 x 705 ) / 705
= 1 / 705
= 1
Step3:
LCM(1, 231) = 231
GCD(1, 231) = ( 1 x 231 ) / 231
= 1 / 231
= 1
So, Greatest Common Divisor of 387, 691, 705, 231 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 387, 691, 705, 231
The greatest common divisor of numbers 387, 691, 705, 231 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 387, 691, 705, 231 is 1.
1. What is the GCD of 387, 691, 705, 231?
GCD of given numbers 387, 691, 705, 231 is 1
2. How to calculate the greatest common divisor of 387, 691, 705, 231?
We can find the highest common divisor of 387, 691, 705, 231 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 387, 691, 705, 231 i.e 1.
3. How can I use the GCD of 387, 691, 705, 231Calculator?
Out the numbers 387, 691, 705, 231 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.