Online GCD Calculator is useful to find the GCD of 402, 162, 642 quickly. Get the easiest ways to solve the greatest common divisor of 402, 162, 642 i.e 6 in different methods as follows.
Given Input numbers are 402, 162, 642
In the factoring method, we have to find the divisors of all numbers
Divisors of 402 :
The positive integer divisors of 402 that completely divides 402 are.
1, 2, 3, 6, 67, 134, 201, 402
Divisors of 162 :
The positive integer divisors of 162 that completely divides 162 are.
1, 2, 3, 6, 9, 18, 27, 54, 81, 162
Divisors of 642 :
The positive integer divisors of 642 that completely divides 642 are.
1, 2, 3, 6, 107, 214, 321, 642
GCD of numbers is the greatest common divisor
So, the GCD (402, 162, 642) = 6.
Given numbers are 402, 162, 642
The list of prime factors of all numbers are
Prime factors of 402 are 2 x 3 x 67
Prime factors of 162 are 2 x 3 x 3 x 3 x 3
Prime factors of 642 are 2 x 3 x 107
The highest common occurrence is 21 x 31
Therefore, GCD of 402, 162, 642 is 6.
Given numbers are 402, 162, 642
GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)
Apply this formula for all numbers.
Step1:
LCM(402, 162) = 10854
GCD(402, 162) = ( 402 x 162 ) / 10854
= 402 / 162
= 402
Step2:
LCM(6, 642) = 642
GCD(6, 642) = ( 6 x 642 ) / 642
= 6 / 642
= 6
So, Greatest Common Divisor of 402, 162, 642 is 6
Here are some samples of GCD of Numbers calculations.
Given numbers are 402, 162, 642
The greatest common divisor of numbers 402, 162, 642 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 402, 162, 642 is 6.
1. What is the GCD of 402, 162, 642?
GCD of given numbers 402, 162, 642 is 6
2. How to calculate the greatest common divisor of 402, 162, 642?
We can find the highest common divisor of 402, 162, 642 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 402, 162, 642 i.e 6.
3. How can I use the GCD of 402, 162, 642Calculator?
Out the numbers 402, 162, 642 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.