GCD of 981, 154, 73, 820 Calculator

Given Input numbers are 981, 154, 73, 820

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

Divisors of 981

List of positive integer divisors of 981 that divides 981 without a remainder.

1, 3, 9, 109, 327, 981

Divisors of 154

List of positive integer divisors of 154 that divides 154 without a remainder.

1, 2, 7, 11, 14, 22, 77, 154

Divisors of 73

List of positive integer divisors of 73 that divides 73 without a remainder.

1, 73

Divisors of 820

List of positive integer divisors of 820 that divides 820 without a remainder.

1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820

Greatest Common Divisior

We found the divisors of 981, 154, 73, 820 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 981, 154, 73, 820 is 1.

Therefore, GCD of numbers 981, 154, 73, 820 is 1

Given Input Data is 981, 154, 73, 820

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

Prime Factorization of 981 is 3 x 3 x 109

Prime Factorization of 154 is 2 x 7 x 11

Prime Factorization of 73 is 73

Prime Factorization of 820 is 2 x 2 x 5 x 41

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(981, 154) = 151074

GCD(981, 154) = ( 981 x 154 ) / 151074

GCD(981, 154) = 151074 / 151074

GCD(981, 154) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 73

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

LCM(1, 73) = 73

GCD(1, 73) = ( 1 x 73 ) / 73

GCD(1, 73) = 73 / 73

GCD(1, 73) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 820

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

LCM(1, 820) = 820

GCD(1, 820) = ( 1 x 820 ) / 820

GCD(1, 820) = 820 / 820

GCD(1, 820) = 1

GCD of 981, 154, 73, 820 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 258, 218, 74, 212
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• GCD of 504, 923, 24, 607
• GCD of 888, 413, 65, 421
• GCD of 824, 238, 41, 522

1. What is the GCD of 981, 154, 73, 820?

GCD of 981, 154, 73, 820 is 1

2. Where do I get the detailed procedure to find GCD of 981, 154, 73, 820?

You can find a detailed procedure to find GCD of 981, 154, 73, 820 on our page.

3. How to find GCD of 981, 154, 73, 820 on a calculator?

You can find the GCD of 981, 154, 73, 820 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.