GCD of 438, 722, 61, 210 Calculator

Given Input numbers are 438, 722, 61, 210

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

Divisors of 438

List of positive integer divisors of 438 that divides 438 without a remainder.

1, 2, 3, 6, 73, 146, 219, 438

Divisors of 722

List of positive integer divisors of 722 that divides 722 without a remainder.

1, 2, 19, 38, 361, 722

Divisors of 61

List of positive integer divisors of 61 that divides 61 without a remainder.

1, 61

Divisors of 210

List of positive integer divisors of 210 that divides 210 without a remainder.

1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210

Greatest Common Divisior

We found the divisors of 438, 722, 61, 210 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 438, 722, 61, 210 is 1.

Therefore, GCD of numbers 438, 722, 61, 210 is 1

Given Input Data is 438, 722, 61, 210

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

Prime Factorization of 438 is 2 x 3 x 73

Prime Factorization of 722 is 2 x 19 x 19

Prime Factorization of 61 is 61

Prime Factorization of 210 is 2 x 3 x 5 x 7

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(438, 722) = 158118

GCD(438, 722) = ( 438 x 722 ) / 158118

GCD(438, 722) = 316236 / 158118

GCD(438, 722) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 61

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

LCM(2, 61) = 122

GCD(2, 61) = ( 2 x 61 ) / 122

GCD(2, 61) = 122 / 122

GCD(2, 61) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 210

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

LCM(1, 210) = 210

GCD(1, 210) = ( 1 x 210 ) / 210

GCD(1, 210) = 210 / 210

GCD(1, 210) = 1

GCD of 438, 722, 61, 210 is 1

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• GCD of 668, 611, 71, 301
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1. What is the GCD of 438, 722, 61, 210?

GCD of 438, 722, 61, 210 is 1

2. Where do I get the detailed procedure to find GCD of 438, 722, 61, 210?

You can find a detailed procedure to find GCD of 438, 722, 61, 210 on our page.

3. How to find GCD of 438, 722, 61, 210 on a calculator?

You can find the GCD of 438, 722, 61, 210 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.