GCD of 639, 135, 843, 408 Calculator

Given Input numbers are 639, 135, 843, 408

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

Divisors of 639 :

The positive integer divisors of 639 that completely divides 639 are.

1, 3, 9, 71, 213, 639

Divisors of 135 :

The positive integer divisors of 135 that completely divides 135 are.

1, 3, 5, 9, 15, 27, 45, 135

Divisors of 843 :

The positive integer divisors of 843 that completely divides 843 are.

1, 3, 281, 843

Divisors of 408 :

The positive integer divisors of 408 that completely divides 408 are.

1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408

GCD of numbers is the greatest common divisor

So, the GCD (639, 135, 843, 408) = 3.

Given numbers are 639, 135, 843, 408

The list of prime factors of all numbers are

Prime factors of 639 are 3 x 3 x 71

Prime factors of 135 are 3 x 3 x 3 x 5

Prime factors of 843 are 3 x 281

Prime factors of 408 are 2 x 2 x 2 x 3 x 17

The highest common occurrence is 3¹

Therefore, GCD of 639, 135, 843, 408 is 3.

Given numbers are 639, 135, 843, 408

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

Apply this formula for all numbers.

Step1:

LCM(639, 135) = 9585

GCD(639, 135) = ( 639 x 135 ) / 9585

= 639 / 135

= 639

Step2:

LCM(9, 843) = 2529

GCD(9, 843) = ( 9 x 843 ) / 2529

= 9 / 843

= 9

Step3:

LCM(3, 408) = 408

GCD(3, 408) = ( 3 x 408 ) / 408

= 3 / 408

= 3

So, Greatest Common Divisor of 639, 135, 843, 408 is 3

Here are some samples of GCD of Numbers calculations.

• GCD of 350, 158, 516, 940
• GCD of 173, 533, 119, 504
• GCD of 368, 662, 318, 813
• GCD of 803, 758, 906, 880
• GCD of 959, 389, 955, 618

Given numbers are 639, 135, 843, 408
The greatest common divisor of numbers 639, 135, 843, 408 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 639, 135, 843, 408 is 3.

1. What is the GCD of 639, 135, 843, 408?

GCD of given numbers 639, 135, 843, 408 is 3

2. How to calculate the greatest common divisor of 639, 135, 843, 408?

We can find the highest common divisor of 639, 135, 843, 408 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 639, 135, 843, 408 i.e 3.

3. How can I use the GCD of 639, 135, 843, 408Calculator?

Out the numbers 639, 135, 843, 408 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.