GCD of 411, 721, 210, 145 Calculator

Given Input numbers are 411, 721, 210, 145

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

Divisors of 411

List of positive integer divisors of 411 that divides 411 without a remainder.

1, 3, 137, 411

Divisors of 721

List of positive integer divisors of 721 that divides 721 without a remainder.

1, 7, 103, 721

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

Divisors of 145

List of positive integer divisors of 145 that divides 145 without a remainder.

1, 5, 29, 145

Greatest Common Divisior

We found the divisors of 411, 721, 210, 145 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 411, 721, 210, 145 is 1.

Therefore, GCD of numbers 411, 721, 210, 145 is 1

Given Input Data is 411, 721, 210, 145

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

Prime Factorization of 411 is 3 x 137

Prime Factorization of 721 is 7 x 103

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

Prime Factorization of 145 is 5 x 29

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(411, 721) = 296331

GCD(411, 721) = ( 411 x 721 ) / 296331

GCD(411, 721) = 296331 / 296331

GCD(411, 721) = 1

Step2:

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

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 145

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

LCM(1, 145) = 145

GCD(1, 145) = ( 1 x 145 ) / 145

GCD(1, 145) = 145 / 145

GCD(1, 145) = 1

GCD of 411, 721, 210, 145 is 1

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1. What is the GCD of 411, 721, 210, 145?

GCD of 411, 721, 210, 145 is 1

2. Where do I get the detailed procedure to find GCD of 411, 721, 210, 145?

You can find a detailed procedure to find GCD of 411, 721, 210, 145 on our page.

3. How to find GCD of 411, 721, 210, 145 on a calculator?

You can find the GCD of 411, 721, 210, 145 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.