GCD of 478, 427, 91, 641 Calculator

Given Input numbers are 478, 427, 91, 641

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

Divisors of 478

List of positive integer divisors of 478 that divides 478 without a remainder.

1, 2, 239, 478

Divisors of 427

List of positive integer divisors of 427 that divides 427 without a remainder.

1, 7, 61, 427

Divisors of 91

List of positive integer divisors of 91 that divides 91 without a remainder.

1, 7, 13, 91

Divisors of 641

List of positive integer divisors of 641 that divides 641 without a remainder.

1, 641

Greatest Common Divisior

We found the divisors of 478, 427, 91, 641 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 478, 427, 91, 641 is 1.

Therefore, GCD of numbers 478, 427, 91, 641 is 1

Given Input Data is 478, 427, 91, 641

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

Prime Factorization of 478 is 2 x 239

Prime Factorization of 427 is 7 x 61

Prime Factorization of 91 is 7 x 13

Prime Factorization of 641 is 641

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(478, 427) = 204106

GCD(478, 427) = ( 478 x 427 ) / 204106

GCD(478, 427) = 204106 / 204106

GCD(478, 427) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 91

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

LCM(1, 91) = 91

GCD(1, 91) = ( 1 x 91 ) / 91

GCD(1, 91) = 91 / 91

GCD(1, 91) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 641

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

LCM(1, 641) = 641

GCD(1, 641) = ( 1 x 641 ) / 641

GCD(1, 641) = 641 / 641

GCD(1, 641) = 1

GCD of 478, 427, 91, 641 is 1

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1. What is the GCD of 478, 427, 91, 641?

GCD of 478, 427, 91, 641 is 1

2. Where do I get the detailed procedure to find GCD of 478, 427, 91, 641?

You can find a detailed procedure to find GCD of 478, 427, 91, 641 on our page.

3. How to find GCD of 478, 427, 91, 641 on a calculator?

You can find the GCD of 478, 427, 91, 641 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.