GCD of 571, 155, 30, 771 Calculator

Given Input numbers are 571, 155, 30, 771

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

Divisors of 571

List of positive integer divisors of 571 that divides 571 without a remainder.

1, 571

Divisors of 155

List of positive integer divisors of 155 that divides 155 without a remainder.

1, 5, 31, 155

Divisors of 30

List of positive integer divisors of 30 that divides 30 without a remainder.

1, 2, 3, 5, 6, 10, 15, 30

Divisors of 771

List of positive integer divisors of 771 that divides 771 without a remainder.

1, 3, 257, 771

Greatest Common Divisior

We found the divisors of 571, 155, 30, 771 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 571, 155, 30, 771 is 1.

Therefore, GCD of numbers 571, 155, 30, 771 is 1

Given Input Data is 571, 155, 30, 771

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

Prime Factorization of 571 is 571

Prime Factorization of 155 is 5 x 31

Prime Factorization of 30 is 2 x 3 x 5

Prime Factorization of 771 is 3 x 257

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(571, 155) = 88505

GCD(571, 155) = ( 571 x 155 ) / 88505

GCD(571, 155) = 88505 / 88505

GCD(571, 155) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 30

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

LCM(1, 30) = 30

GCD(1, 30) = ( 1 x 30 ) / 30

GCD(1, 30) = 30 / 30

GCD(1, 30) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 771

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

LCM(1, 771) = 771

GCD(1, 771) = ( 1 x 771 ) / 771

GCD(1, 771) = 771 / 771

GCD(1, 771) = 1

GCD of 571, 155, 30, 771 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 530, 873, 70, 190
• GCD of 185, 727, 29, 438
• GCD of 980, 954, 18, 893
• GCD of 343, 499, 46, 421
• GCD of 166, 768, 61, 737

1. What is the GCD of 571, 155, 30, 771?

GCD of 571, 155, 30, 771 is 1

2. Where do I get the detailed procedure to find GCD of 571, 155, 30, 771?

You can find a detailed procedure to find GCD of 571, 155, 30, 771 on our page.

3. How to find GCD of 571, 155, 30, 771 on a calculator?

You can find the GCD of 571, 155, 30, 771 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.