GCD of 857, 765, 557, 128 Calculator

Given Input numbers are 857, 765, 557, 128

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

Divisors of 857

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

1, 857

Divisors of 765

List of positive integer divisors of 765 that divides 765 without a remainder.

1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765

Divisors of 557

List of positive integer divisors of 557 that divides 557 without a remainder.

1, 557

Divisors of 128

List of positive integer divisors of 128 that divides 128 without a remainder.

1, 2, 4, 8, 16, 32, 64, 128

Greatest Common Divisior

We found the divisors of 857, 765, 557, 128 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 857, 765, 557, 128 is 1.

Therefore, GCD of numbers 857, 765, 557, 128 is 1

Given Input Data is 857, 765, 557, 128

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

Prime Factorization of 857 is 857

Prime Factorization of 765 is 3 x 3 x 5 x 17

Prime Factorization of 557 is 557

Prime Factorization of 128 is 2 x 2 x 2 x 2 x 2 x 2 x 2

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(857, 765) = 655605

GCD(857, 765) = ( 857 x 765 ) / 655605

GCD(857, 765) = 655605 / 655605

GCD(857, 765) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 557

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

LCM(1, 557) = 557

GCD(1, 557) = ( 1 x 557 ) / 557

GCD(1, 557) = 557 / 557

GCD(1, 557) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 128

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

LCM(1, 128) = 128

GCD(1, 128) = ( 1 x 128 ) / 128

GCD(1, 128) = 128 / 128

GCD(1, 128) = 1

GCD of 857, 765, 557, 128 is 1

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1. What is the GCD of 857, 765, 557, 128?

GCD of 857, 765, 557, 128 is 1

2. Where do I get the detailed procedure to find GCD of 857, 765, 557, 128?

You can find a detailed procedure to find GCD of 857, 765, 557, 128 on our page.

3. How to find GCD of 857, 765, 557, 128 on a calculator?

You can find the GCD of 857, 765, 557, 128 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.