Online GCD Calculator is useful to find the GCD of 423, 402, 867, 861 quickly. Get the easiest ways to solve the greatest common divisor of 423, 402, 867, 861 i.e 3 in different methods as follows.
Given Input numbers are 423, 402, 867, 861
In the factoring method, we have to find the divisors of all numbers
Divisors of 423 :
The positive integer divisors of 423 that completely divides 423 are.
1, 3, 9, 47, 141, 423
Divisors of 402 :
The positive integer divisors of 402 that completely divides 402 are.
1, 2, 3, 6, 67, 134, 201, 402
Divisors of 867 :
The positive integer divisors of 867 that completely divides 867 are.
1, 3, 17, 51, 289, 867
Divisors of 861 :
The positive integer divisors of 861 that completely divides 861 are.
1, 3, 7, 21, 41, 123, 287, 861
GCD of numbers is the greatest common divisor
So, the GCD (423, 402, 867, 861) = 3.
Given numbers are 423, 402, 867, 861
The list of prime factors of all numbers are
Prime factors of 423 are 3 x 3 x 47
Prime factors of 402 are 2 x 3 x 67
Prime factors of 867 are 3 x 17 x 17
Prime factors of 861 are 3 x 7 x 41
The highest common occurrence is 31
Therefore, GCD of 423, 402, 867, 861 is 3.
Given numbers are 423, 402, 867, 861
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(423, 402) = 56682
GCD(423, 402) = ( 423 x 402 ) / 56682
= 423 / 402
= 423
Step2:
LCM(3, 867) = 867
GCD(3, 867) = ( 3 x 867 ) / 867
= 3 / 867
= 3
Step3:
LCM(3, 861) = 861
GCD(3, 861) = ( 3 x 861 ) / 861
= 3 / 861
= 3
So, Greatest Common Divisor of 423, 402, 867, 861 is 3
Here are some samples of GCD of Numbers calculations.
Given numbers are 423, 402, 867, 861
The greatest common divisor of numbers 423, 402, 867, 861 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 423, 402, 867, 861 is 3.
1. What is the GCD of 423, 402, 867, 861?
GCD of given numbers 423, 402, 867, 861 is 3
2. How to calculate the greatest common divisor of 423, 402, 867, 861?
We can find the highest common divisor of 423, 402, 867, 861 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 423, 402, 867, 861 i.e 3.
3. How can I use the GCD of 423, 402, 867, 861Calculator?
Out the numbers 423, 402, 867, 861 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.