GCD of 636, 842, 18, 406 Calculator

Given Input numbers are 636, 842, 18, 406

In the factoring method, we have to find the divisors of all numbers

Divisors of 636 :

The positive integer divisors of 636 that completely divides 636 are.

1, 2, 3, 4, 6, 12, 53, 106, 159, 212, 318, 636

Divisors of 842 :

The positive integer divisors of 842 that completely divides 842 are.

1, 2, 421, 842

Divisors of 18 :

The positive integer divisors of 18 that completely divides 18 are.

1, 2, 3, 6, 9, 18

Divisors of 406 :

The positive integer divisors of 406 that completely divides 406 are.

1, 2, 7, 14, 29, 58, 203, 406

GCD of numbers is the greatest common divisor

So, the GCD (636, 842, 18, 406) = 2.

Given numbers are 636, 842, 18, 406

The list of prime factors of all numbers are

Prime factors of 636 are 2 x 2 x 3 x 53

Prime factors of 842 are 2 x 421

Prime factors of 18 are 2 x 3 x 3

Prime factors of 406 are 2 x 7 x 29

The highest common occurrence is 2¹

Therefore, GCD of 636, 842, 18, 406 is 2.

Given numbers are 636, 842, 18, 406

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(636, 842) = 267756

GCD(636, 842) = ( 636 x 842 ) / 267756

= 636 / 842

= 636

Step2:

LCM(2, 18) = 18

GCD(2, 18) = ( 2 x 18 ) / 18

= 2 / 18

= 2

Step3:

LCM(2, 406) = 406

GCD(2, 406) = ( 2 x 406 ) / 406

= 2 / 406

= 2

So, Greatest Common Divisor of 636, 842, 18, 406 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 489, 760, 79, 523
• GCD of 906, 999, 60, 543
• GCD of 729, 820, 70, 823
• GCD of 930, 620, 74, 647
• GCD of 342, 183, 36, 993

Given numbers are 636, 842, 18, 406
The greatest common divisor of numbers 636, 842, 18, 406 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 636, 842, 18, 406 is 2.

1. What is the GCD of 636, 842, 18, 406?

GCD of given numbers 636, 842, 18, 406 is 2

2. How to calculate the greatest common divisor of 636, 842, 18, 406?

We can find the highest common divisor of 636, 842, 18, 406 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 636, 842, 18, 406 i.e 2.

3. How can I use the GCD of 636, 842, 18, 406Calculator?

Out the numbers 636, 842, 18, 406 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.