Online GCD Calculator is useful to find the GCD of 861, 189, 702, 401 quickly. Get the easiest ways to solve the greatest common divisor of 861, 189, 702, 401 i.e 1 in different methods as follows.
Given Input numbers are 861, 189, 702, 401
In the factoring method, we have to find the divisors of all numbers
Divisors of 861 :
The positive integer divisors of 861 that completely divides 861 are.
1, 3, 7, 21, 41, 123, 287, 861
Divisors of 189 :
The positive integer divisors of 189 that completely divides 189 are.
1, 3, 7, 9, 21, 27, 63, 189
Divisors of 702 :
The positive integer divisors of 702 that completely divides 702 are.
1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702
Divisors of 401 :
The positive integer divisors of 401 that completely divides 401 are.
1, 401
GCD of numbers is the greatest common divisor
So, the GCD (861, 189, 702, 401) = 1.
Given numbers are 861, 189, 702, 401
The list of prime factors of all numbers are
Prime factors of 861 are 3 x 7 x 41
Prime factors of 189 are 3 x 3 x 3 x 7
Prime factors of 702 are 2 x 3 x 3 x 3 x 13
Prime factors of 401 are 401
The above numbers do not have any common prime factor. So GCD is 1
Given numbers are 861, 189, 702, 401
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(861, 189) = 7749
GCD(861, 189) = ( 861 x 189 ) / 7749
= 861 / 189
= 861
Step2:
LCM(21, 702) = 4914
GCD(21, 702) = ( 21 x 702 ) / 4914
= 21 / 702
= 21
Step3:
LCM(3, 401) = 1203
GCD(3, 401) = ( 3 x 401 ) / 1203
= 3 / 401
= 3
So, Greatest Common Divisor of 861, 189, 702, 401 is 1
Here are some samples of GCD of Numbers calculations.
Given numbers are 861, 189, 702, 401
The greatest common divisor of numbers 861, 189, 702, 401 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 861, 189, 702, 401 is 1.
1. What is the GCD of 861, 189, 702, 401?
GCD of given numbers 861, 189, 702, 401 is 1
2. How to calculate the greatest common divisor of 861, 189, 702, 401?
We can find the highest common divisor of 861, 189, 702, 401 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 861, 189, 702, 401 i.e 1.
3. How can I use the GCD of 861, 189, 702, 401Calculator?
Out the numbers 861, 189, 702, 401 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.