GCD of 771, 568, 71, 420 Calculator

Given Input numbers are 771, 568, 71, 420

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

Divisors of 771

List of positive integer divisors of 771 that divides 771 without a remainder.

1, 3, 257, 771

Divisors of 568

List of positive integer divisors of 568 that divides 568 without a remainder.

1, 2, 4, 8, 71, 142, 284, 568

Divisors of 71

List of positive integer divisors of 71 that divides 71 without a remainder.

1, 71

Divisors of 420

List of positive integer divisors of 420 that divides 420 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

Greatest Common Divisior

We found the divisors of 771, 568, 71, 420 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 771, 568, 71, 420 is 1.

Therefore, GCD of numbers 771, 568, 71, 420 is 1

Given Input Data is 771, 568, 71, 420

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

Prime Factorization of 771 is 3 x 257

Prime Factorization of 568 is 2 x 2 x 2 x 71

Prime Factorization of 71 is 71

Prime Factorization of 420 is 2 x 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(771, 568) = 437928

GCD(771, 568) = ( 771 x 568 ) / 437928

GCD(771, 568) = 437928 / 437928

GCD(771, 568) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 71

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

LCM(1, 71) = 71

GCD(1, 71) = ( 1 x 71 ) / 71

GCD(1, 71) = 71 / 71

GCD(1, 71) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 420

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

LCM(1, 420) = 420

GCD(1, 420) = ( 1 x 420 ) / 420

GCD(1, 420) = 420 / 420

GCD(1, 420) = 1

GCD of 771, 568, 71, 420 is 1

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• GCD of 360, 895, 91, 586
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1. What is the GCD of 771, 568, 71, 420?

GCD of 771, 568, 71, 420 is 1

2. Where do I get the detailed procedure to find GCD of 771, 568, 71, 420?

You can find a detailed procedure to find GCD of 771, 568, 71, 420 on our page.

3. How to find GCD of 771, 568, 71, 420 on a calculator?

You can find the GCD of 771, 568, 71, 420 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.