GCD of 122, 885, 21, 857 Calculator

Given Input numbers are 122, 885, 21, 857

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

Divisors of 122

List of positive integer divisors of 122 that divides 122 without a remainder.

1, 2, 61, 122

Divisors of 885

List of positive integer divisors of 885 that divides 885 without a remainder.

1, 3, 5, 15, 59, 177, 295, 885

Divisors of 21

List of positive integer divisors of 21 that divides 21 without a remainder.

1, 3, 7, 21

Divisors of 857

List of positive integer divisors of 857 that divides 857 without a remainder.

1, 857

Greatest Common Divisior

We found the divisors of 122, 885, 21, 857 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 122, 885, 21, 857 is 1.

Therefore, GCD of numbers 122, 885, 21, 857 is 1

Given Input Data is 122, 885, 21, 857

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

Prime Factorization of 122 is 2 x 61

Prime Factorization of 885 is 3 x 5 x 59

Prime Factorization of 21 is 3 x 7

Prime Factorization of 857 is 857

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(122, 885) = 107970

GCD(122, 885) = ( 122 x 885 ) / 107970

GCD(122, 885) = 107970 / 107970

GCD(122, 885) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 21

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

LCM(1, 21) = 21

GCD(1, 21) = ( 1 x 21 ) / 21

GCD(1, 21) = 21 / 21

GCD(1, 21) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 857

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

LCM(1, 857) = 857

GCD(1, 857) = ( 1 x 857 ) / 857

GCD(1, 857) = 857 / 857

GCD(1, 857) = 1

GCD of 122, 885, 21, 857 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 249, 418, 75, 558
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• GCD of 946, 841, 41, 474

1. What is the GCD of 122, 885, 21, 857?

GCD of 122, 885, 21, 857 is 1

2. Where do I get the detailed procedure to find GCD of 122, 885, 21, 857?

You can find a detailed procedure to find GCD of 122, 885, 21, 857 on our page.

3. How to find GCD of 122, 885, 21, 857 on a calculator?

You can find the GCD of 122, 885, 21, 857 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.