GCD of 977, 327, 420 Calculator

Given Input numbers are 977, 327, 420

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

Divisors of 977

List of positive integer divisors of 977 that divides 977 without a remainder.

1, 977

Divisors of 327

List of positive integer divisors of 327 that divides 327 without a remainder.

1, 3, 109, 327

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 977, 327, 420 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 977, 327, 420 is 1.

Therefore, GCD of numbers 977, 327, 420 is 1

Given Input Data is 977, 327, 420

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

Prime Factorization of 977 is 977

Prime Factorization of 327 is 3 x 109

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(977, 327) = 319479

GCD(977, 327) = ( 977 x 327 ) / 319479

GCD(977, 327) = 319479 / 319479

GCD(977, 327) = 1

Step2:

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 977, 327, 420 is 1

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1. What is the GCD of 977, 327, 420?

GCD of 977, 327, 420 is 1

2. Where do I get the detailed procedure to find GCD of 977, 327, 420?

You can find a detailed procedure to find GCD of 977, 327, 420 on our page.

3. How to find GCD of 977, 327, 420 on a calculator?

You can find the GCD of 977, 327, 420 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.