GCD of 196, 420, 79, 787 Calculator

Given Input numbers are 196, 420, 79, 787

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

Divisors of 196

List of positive integer divisors of 196 that divides 196 without a remainder.

1, 2, 4, 7, 14, 28, 49, 98, 196

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

Divisors of 79

List of positive integer divisors of 79 that divides 79 without a remainder.

1, 79

Divisors of 787

List of positive integer divisors of 787 that divides 787 without a remainder.

1, 787

Greatest Common Divisior

We found the divisors of 196, 420, 79, 787 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 196, 420, 79, 787 is 1.

Therefore, GCD of numbers 196, 420, 79, 787 is 1

Given Input Data is 196, 420, 79, 787

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

Prime Factorization of 196 is 2 x 2 x 7 x 7

Prime Factorization of 420 is 2 x 2 x 3 x 5 x 7

Prime Factorization of 79 is 79

Prime Factorization of 787 is 787

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(196, 420) = 2940

GCD(196, 420) = ( 196 x 420 ) / 2940

GCD(196, 420) = 82320 / 2940

GCD(196, 420) = 28

Step2:

Here we consider the GCD from the above i.e. 28 as first number and the next as 79

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

LCM(28, 79) = 2212

GCD(28, 79) = ( 28 x 79 ) / 2212

GCD(28, 79) = 2212 / 2212

GCD(28, 79) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 787

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

LCM(1, 787) = 787

GCD(1, 787) = ( 1 x 787 ) / 787

GCD(1, 787) = 787 / 787

GCD(1, 787) = 1

GCD of 196, 420, 79, 787 is 1

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• GCD of 877, 299, 44, 613
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• GCD of 806, 993, 81, 296

1. What is the GCD of 196, 420, 79, 787?

GCD of 196, 420, 79, 787 is 1

2. Where do I get the detailed procedure to find GCD of 196, 420, 79, 787?

You can find a detailed procedure to find GCD of 196, 420, 79, 787 on our page.

3. How to find GCD of 196, 420, 79, 787 on a calculator?

You can find the GCD of 196, 420, 79, 787 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.