GCD of 840, 158, 38, 947 Calculator

Given Input numbers are 840, 158, 38, 947

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

Divisors of 840

List of positive integer divisors of 840 that divides 840 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

Divisors of 158

List of positive integer divisors of 158 that divides 158 without a remainder.

1, 2, 79, 158

Divisors of 38

List of positive integer divisors of 38 that divides 38 without a remainder.

1, 2, 19, 38

Divisors of 947

List of positive integer divisors of 947 that divides 947 without a remainder.

1, 947

Greatest Common Divisior

We found the divisors of 840, 158, 38, 947 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 840, 158, 38, 947 is 1.

Therefore, GCD of numbers 840, 158, 38, 947 is 1

Given Input Data is 840, 158, 38, 947

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

Prime Factorization of 840 is 2 x 2 x 2 x 3 x 5 x 7

Prime Factorization of 158 is 2 x 79

Prime Factorization of 38 is 2 x 19

Prime Factorization of 947 is 947

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(840, 158) = 66360

GCD(840, 158) = ( 840 x 158 ) / 66360

GCD(840, 158) = 132720 / 66360

GCD(840, 158) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 38

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

LCM(2, 38) = 38

GCD(2, 38) = ( 2 x 38 ) / 38

GCD(2, 38) = 76 / 38

GCD(2, 38) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 947

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

LCM(2, 947) = 1894

GCD(2, 947) = ( 2 x 947 ) / 1894

GCD(2, 947) = 1894 / 1894

GCD(2, 947) = 1

GCD of 840, 158, 38, 947 is 1

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• GCD of 647, 955, 75, 526
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1. What is the GCD of 840, 158, 38, 947?

GCD of 840, 158, 38, 947 is 1

2. Where do I get the detailed procedure to find GCD of 840, 158, 38, 947?

You can find a detailed procedure to find GCD of 840, 158, 38, 947 on our page.

3. How to find GCD of 840, 158, 38, 947 on a calculator?

You can find the GCD of 840, 158, 38, 947 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.