GCD of 358, 821, 57, 646 Calculator

Given Input numbers are 358, 821, 57, 646

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

Divisors of 358

List of positive integer divisors of 358 that divides 358 without a remainder.

1, 2, 179, 358

Divisors of 821

List of positive integer divisors of 821 that divides 821 without a remainder.

1, 821

Divisors of 57

List of positive integer divisors of 57 that divides 57 without a remainder.

1, 3, 19, 57

Divisors of 646

List of positive integer divisors of 646 that divides 646 without a remainder.

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

Greatest Common Divisior

We found the divisors of 358, 821, 57, 646 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 358, 821, 57, 646 is 1.

Therefore, GCD of numbers 358, 821, 57, 646 is 1

Given Input Data is 358, 821, 57, 646

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

Prime Factorization of 358 is 2 x 179

Prime Factorization of 821 is 821

Prime Factorization of 57 is 3 x 19

Prime Factorization of 646 is 2 x 17 x 19

The above numbers do not have any common prime factor. So GCD is 1

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(358, 821) = 293918

GCD(358, 821) = ( 358 x 821 ) / 293918

GCD(358, 821) = 293918 / 293918

GCD(358, 821) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 57

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

LCM(1, 57) = 57

GCD(1, 57) = ( 1 x 57 ) / 57

GCD(1, 57) = 57 / 57

GCD(1, 57) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 646

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

LCM(1, 646) = 646

GCD(1, 646) = ( 1 x 646 ) / 646

GCD(1, 646) = 646 / 646

GCD(1, 646) = 1

GCD of 358, 821, 57, 646 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 812, 735, 37, 237
• GCD of 980, 379, 72, 591
• GCD of 932, 281, 30, 425
• GCD of 757, 162, 70, 752
• GCD of 627, 885, 53, 824

1. What is the GCD of 358, 821, 57, 646?

GCD of 358, 821, 57, 646 is 1

2. Where do I get the detailed procedure to find GCD of 358, 821, 57, 646?

You can find a detailed procedure to find GCD of 358, 821, 57, 646 on our page.

3. How to find GCD of 358, 821, 57, 646 on a calculator?

You can find the GCD of 358, 821, 57, 646 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.