GCD of 858, 621, 64, 961 Calculator

Given Input numbers are 858, 621, 64, 961

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

Divisors of 858

List of positive integer divisors of 858 that divides 858 without a remainder.

1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858

Divisors of 621

List of positive integer divisors of 621 that divides 621 without a remainder.

1, 3, 9, 23, 27, 69, 207, 621

Divisors of 64

List of positive integer divisors of 64 that divides 64 without a remainder.

1, 2, 4, 8, 16, 32, 64

Divisors of 961

List of positive integer divisors of 961 that divides 961 without a remainder.

1, 31, 961

Greatest Common Divisior

We found the divisors of 858, 621, 64, 961 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 858, 621, 64, 961 is 1.

Therefore, GCD of numbers 858, 621, 64, 961 is 1

Given Input Data is 858, 621, 64, 961

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

Prime Factorization of 858 is 2 x 3 x 11 x 13

Prime Factorization of 621 is 3 x 3 x 3 x 23

Prime Factorization of 64 is 2 x 2 x 2 x 2 x 2 x 2

Prime Factorization of 961 is 31 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(858, 621) = 177606

GCD(858, 621) = ( 858 x 621 ) / 177606

GCD(858, 621) = 532818 / 177606

GCD(858, 621) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 64

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

LCM(3, 64) = 192

GCD(3, 64) = ( 3 x 64 ) / 192

GCD(3, 64) = 192 / 192

GCD(3, 64) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 961

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

LCM(1, 961) = 961

GCD(1, 961) = ( 1 x 961 ) / 961

GCD(1, 961) = 961 / 961

GCD(1, 961) = 1

GCD of 858, 621, 64, 961 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 131, 316, 24, 127
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• GCD of 851, 669, 83, 569
• GCD of 461, 392, 45, 805
• GCD of 123, 501, 22, 736

1. What is the GCD of 858, 621, 64, 961?

GCD of 858, 621, 64, 961 is 1

2. Where do I get the detailed procedure to find GCD of 858, 621, 64, 961?

You can find a detailed procedure to find GCD of 858, 621, 64, 961 on our page.

3. How to find GCD of 858, 621, 64, 961 on a calculator?

You can find the GCD of 858, 621, 64, 961 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.