GCD of 642, 147, 68, 426 Calculator

Given Input numbers are 642, 147, 68, 426

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

Divisors of 642

List of positive integer divisors of 642 that divides 642 without a remainder.

1, 2, 3, 6, 107, 214, 321, 642

Divisors of 147

List of positive integer divisors of 147 that divides 147 without a remainder.

1, 3, 7, 21, 49, 147

Divisors of 68

List of positive integer divisors of 68 that divides 68 without a remainder.

1, 2, 4, 17, 34, 68

Divisors of 426

List of positive integer divisors of 426 that divides 426 without a remainder.

1, 2, 3, 6, 71, 142, 213, 426

Greatest Common Divisior

We found the divisors of 642, 147, 68, 426 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 642, 147, 68, 426 is 1.

Therefore, GCD of numbers 642, 147, 68, 426 is 1

Given Input Data is 642, 147, 68, 426

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

Prime Factorization of 642 is 2 x 3 x 107

Prime Factorization of 147 is 3 x 7 x 7

Prime Factorization of 68 is 2 x 2 x 17

Prime Factorization of 426 is 2 x 3 x 71

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(642, 147) = 31458

GCD(642, 147) = ( 642 x 147 ) / 31458

GCD(642, 147) = 94374 / 31458

GCD(642, 147) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 68

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

LCM(3, 68) = 204

GCD(3, 68) = ( 3 x 68 ) / 204

GCD(3, 68) = 204 / 204

GCD(3, 68) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 426

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

LCM(1, 426) = 426

GCD(1, 426) = ( 1 x 426 ) / 426

GCD(1, 426) = 426 / 426

GCD(1, 426) = 1

GCD of 642, 147, 68, 426 is 1

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• GCD of 294, 108, 95, 806
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1. What is the GCD of 642, 147, 68, 426?

GCD of 642, 147, 68, 426 is 1

2. Where do I get the detailed procedure to find GCD of 642, 147, 68, 426?

You can find a detailed procedure to find GCD of 642, 147, 68, 426 on our page.

3. How to find GCD of 642, 147, 68, 426 on a calculator?

You can find the GCD of 642, 147, 68, 426 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.