GCD of 661, 230, 777, 289 Calculator

Given Input numbers are 661, 230, 777, 289

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

Divisors of 661

List of positive integer divisors of 661 that divides 661 without a remainder.

1, 661

Divisors of 230

List of positive integer divisors of 230 that divides 230 without a remainder.

1, 2, 5, 10, 23, 46, 115, 230

Divisors of 777

List of positive integer divisors of 777 that divides 777 without a remainder.

1, 3, 7, 21, 37, 111, 259, 777

Divisors of 289

List of positive integer divisors of 289 that divides 289 without a remainder.

1, 17, 289

Greatest Common Divisior

We found the divisors of 661, 230, 777, 289 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 230, 777, 289 is 1.

Therefore, GCD of numbers 661, 230, 777, 289 is 1

Given Input Data is 661, 230, 777, 289

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

Prime Factorization of 661 is 661

Prime Factorization of 230 is 2 x 5 x 23

Prime Factorization of 777 is 3 x 7 x 37

Prime Factorization of 289 is 17 x 17

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(661, 230) = 152030

GCD(661, 230) = ( 661 x 230 ) / 152030

GCD(661, 230) = 152030 / 152030

GCD(661, 230) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 777

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

LCM(1, 777) = 777

GCD(1, 777) = ( 1 x 777 ) / 777

GCD(1, 777) = 777 / 777

GCD(1, 777) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 289

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

LCM(1, 289) = 289

GCD(1, 289) = ( 1 x 289 ) / 289

GCD(1, 289) = 289 / 289

GCD(1, 289) = 1

GCD of 661, 230, 777, 289 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 252, 286, 173, 267
• GCD of 480, 228, 167, 120
• GCD of 170, 143, 583, 127
• GCD of 323, 163, 511, 984
• GCD of 196, 860, 654, 524

1. What is the GCD of 661, 230, 777, 289?

GCD of 661, 230, 777, 289 is 1

2. Where do I get the detailed procedure to find GCD of 661, 230, 777, 289?

You can find a detailed procedure to find GCD of 661, 230, 777, 289 on our page.

3. How to find GCD of 661, 230, 777, 289 on a calculator?

You can find the GCD of 661, 230, 777, 289 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.