GCD of 87, 423, 846, 620 Calculator

Given Input numbers are 87, 423, 846, 620

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

Divisors of 87

List of positive integer divisors of 87 that divides 87 without a remainder.

1, 3, 29, 87

Divisors of 423

List of positive integer divisors of 423 that divides 423 without a remainder.

1, 3, 9, 47, 141, 423

Divisors of 846

List of positive integer divisors of 846 that divides 846 without a remainder.

1, 2, 3, 6, 9, 18, 47, 94, 141, 282, 423, 846

Divisors of 620

List of positive integer divisors of 620 that divides 620 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Greatest Common Divisior

We found the divisors of 87, 423, 846, 620 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 87, 423, 846, 620 is 1.

Therefore, GCD of numbers 87, 423, 846, 620 is 1

Given Input Data is 87, 423, 846, 620

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

Prime Factorization of 87 is 3 x 29

Prime Factorization of 423 is 3 x 3 x 47

Prime Factorization of 846 is 2 x 3 x 3 x 47

Prime Factorization of 620 is 2 x 2 x 5 x 31

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(87, 423) = 12267

GCD(87, 423) = ( 87 x 423 ) / 12267

GCD(87, 423) = 36801 / 12267

GCD(87, 423) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 846

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

LCM(3, 846) = 846

GCD(3, 846) = ( 3 x 846 ) / 846

GCD(3, 846) = 2538 / 846

GCD(3, 846) = 3

Step3:

Here we consider the GCD from the above i.e. 3 as first number and the next as 620

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

LCM(3, 620) = 1860

GCD(3, 620) = ( 3 x 620 ) / 1860

GCD(3, 620) = 1860 / 1860

GCD(3, 620) = 1

GCD of 87, 423, 846, 620 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 34, 581, 188, 215
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• GCD of 87, 436, 253, 712
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1. What is the GCD of 87, 423, 846, 620?

GCD of 87, 423, 846, 620 is 1

2. Where do I get the detailed procedure to find GCD of 87, 423, 846, 620?

You can find a detailed procedure to find GCD of 87, 423, 846, 620 on our page.

3. How to find GCD of 87, 423, 846, 620 on a calculator?

You can find the GCD of 87, 423, 846, 620 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.