GCD of 808, 646, 408, 630 Calculator

Given Input numbers are 808, 646, 408, 630

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

Divisors of 808 :

The positive integer divisors of 808 that completely divides 808 are.

1, 2, 4, 8, 101, 202, 404, 808

Divisors of 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

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

Divisors of 630 :

The positive integer divisors of 630 that completely divides 630 are.

1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630

GCD of numbers is the greatest common divisor

So, the GCD (808, 646, 408, 630) = 2.

Given numbers are 808, 646, 408, 630

The list of prime factors of all numbers are

Prime factors of 808 are 2 x 2 x 2 x 101

Prime factors of 646 are 2 x 17 x 19

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

Prime factors of 630 are 2 x 3 x 3 x 5 x 7

The highest common occurrence is 2¹

Therefore, GCD of 808, 646, 408, 630 is 2.

Given numbers are 808, 646, 408, 630

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

Apply this formula for all numbers.

Step1:

LCM(808, 646) = 260984

GCD(808, 646) = ( 808 x 646 ) / 260984

= 808 / 646

= 808

Step2:

LCM(2, 408) = 408

GCD(2, 408) = ( 2 x 408 ) / 408

= 2 / 408

= 2

Step3:

LCM(2, 630) = 630

GCD(2, 630) = ( 2 x 630 ) / 630

= 2 / 630

= 2

So, Greatest Common Divisor of 808, 646, 408, 630 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 461, 260, 995, 998
• GCD of 975, 172, 104, 192
• GCD of 543, 955, 838, 426
• GCD of 857, 151, 828, 729
• GCD of 714, 764, 366, 873

Given numbers are 808, 646, 408, 630
The greatest common divisor of numbers 808, 646, 408, 630 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 808, 646, 408, 630 is 2.

1. What is the GCD of 808, 646, 408, 630?

GCD of given numbers 808, 646, 408, 630 is 2

2. How to calculate the greatest common divisor of 808, 646, 408, 630?

We can find the highest common divisor of 808, 646, 408, 630 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 808, 646, 408, 630 i.e 2.

3. How can I use the GCD of 808, 646, 408, 630Calculator?

Out the numbers 808, 646, 408, 630 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.