GCD of 142, 505, 687, 787 Calculator

Given Input numbers are 142, 505, 687, 787

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

Divisors of 142

List of positive integer divisors of 142 that divides 142 without a remainder.

1, 2, 71, 142

Divisors of 505

List of positive integer divisors of 505 that divides 505 without a remainder.

1, 5, 101, 505

Divisors of 687

List of positive integer divisors of 687 that divides 687 without a remainder.

1, 3, 229, 687

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 142, 505, 687, 787 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 142, 505, 687, 787 is 1.

Therefore, GCD of numbers 142, 505, 687, 787 is 1

Given Input Data is 142, 505, 687, 787

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

Prime Factorization of 142 is 2 x 71

Prime Factorization of 505 is 5 x 101

Prime Factorization of 687 is 3 x 229

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(142, 505) = 71710

GCD(142, 505) = ( 142 x 505 ) / 71710

GCD(142, 505) = 71710 / 71710

GCD(142, 505) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 687

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

LCM(1, 687) = 687

GCD(1, 687) = ( 1 x 687 ) / 687

GCD(1, 687) = 687 / 687

GCD(1, 687) = 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 142, 505, 687, 787 is 1

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1. What is the GCD of 142, 505, 687, 787?

GCD of 142, 505, 687, 787 is 1

2. Where do I get the detailed procedure to find GCD of 142, 505, 687, 787?

You can find a detailed procedure to find GCD of 142, 505, 687, 787 on our page.

3. How to find GCD of 142, 505, 687, 787 on a calculator?

You can find the GCD of 142, 505, 687, 787 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.