GCD of 638, 640, 986 Calculator

Given Input numbers are 638, 640, 986

To find the GCD of numbers using factoring list out all the divisors of each number

Divisors of 638

List of positive integer divisors of 638 that divides 638 without a remainder.

1, 2, 11, 22, 29, 58, 319, 638

Divisors of 640

List of positive integer divisors of 640 that divides 640 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

Divisors of 986

List of positive integer divisors of 986 that divides 986 without a remainder.

1, 2, 17, 29, 34, 58, 493, 986

Greatest Common Divisior

We found the divisors of 638, 640, 986 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 638, 640, 986 is 2.

Therefore, GCD of numbers 638, 640, 986 is 2

Given Input Data is 638, 640, 986

Make a list of Prime Factors of all the given numbers initially

Prime Factorization of 638 is 2 x 11 x 29

Prime Factorization of 640 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

Prime Factorization of 986 is 2 x 17 x 29

Highest common occurrences in the given inputs are 2¹

Multiplying them we get the GCD as 2

Step1:

Let's calculate the GCD of first two numbers

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

LCM(638, 640) = 204160

GCD(638, 640) = ( 638 x 640 ) / 204160

GCD(638, 640) = 408320 / 204160

GCD(638, 640) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 986

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

LCM(2, 986) = 986

GCD(2, 986) = ( 2 x 986 ) / 986

GCD(2, 986) = 1972 / 986

GCD(2, 986) = 2

GCD of 638, 640, 986 is 2

Here are some samples of GCD of Numbers calculations.

• GCD of 382, 269, 780
• GCD of 493, 310, 706
• GCD of 123, 666, 772
• GCD of 181, 517, 191
• GCD of 775, 160, 947

1. What is the GCD of 638, 640, 986?

GCD of 638, 640, 986 is 2

2. Where do I get the detailed procedure to find GCD of 638, 640, 986?

You can find a detailed procedure to find GCD of 638, 640, 986 on our page.

3. How to find GCD of 638, 640, 986 on a calculator?

You can find the GCD of 638, 640, 986 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.