GCD of 655, 890, 77, 287 Calculator

Given Input numbers are 655, 890, 77, 287

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

Divisors of 655

List of positive integer divisors of 655 that divides 655 without a remainder.

1, 5, 131, 655

Divisors of 890

List of positive integer divisors of 890 that divides 890 without a remainder.

1, 2, 5, 10, 89, 178, 445, 890

Divisors of 77

List of positive integer divisors of 77 that divides 77 without a remainder.

1, 7, 11, 77

Divisors of 287

List of positive integer divisors of 287 that divides 287 without a remainder.

1, 7, 41, 287

Greatest Common Divisior

We found the divisors of 655, 890, 77, 287 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 655, 890, 77, 287 is 1.

Therefore, GCD of numbers 655, 890, 77, 287 is 1

Given Input Data is 655, 890, 77, 287

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

Prime Factorization of 655 is 5 x 131

Prime Factorization of 890 is 2 x 5 x 89

Prime Factorization of 77 is 7 x 11

Prime Factorization of 287 is 7 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(655, 890) = 116590

GCD(655, 890) = ( 655 x 890 ) / 116590

GCD(655, 890) = 582950 / 116590

GCD(655, 890) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 77

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

LCM(5, 77) = 385

GCD(5, 77) = ( 5 x 77 ) / 385

GCD(5, 77) = 385 / 385

GCD(5, 77) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 287

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

LCM(1, 287) = 287

GCD(1, 287) = ( 1 x 287 ) / 287

GCD(1, 287) = 287 / 287

GCD(1, 287) = 1

GCD of 655, 890, 77, 287 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 887, 785, 51, 227
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• GCD of 366, 758, 39, 471
• GCD of 365, 645, 27, 763
• GCD of 433, 961, 94, 974

1. What is the GCD of 655, 890, 77, 287?

GCD of 655, 890, 77, 287 is 1

2. Where do I get the detailed procedure to find GCD of 655, 890, 77, 287?

You can find a detailed procedure to find GCD of 655, 890, 77, 287 on our page.

3. How to find GCD of 655, 890, 77, 287 on a calculator?

You can find the GCD of 655, 890, 77, 287 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.