GCD of 661, 877, 689, 445 Calculator

Given Input numbers are 661, 877, 689, 445

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 877

List of positive integer divisors of 877 that divides 877 without a remainder.

1, 877

Divisors of 689

List of positive integer divisors of 689 that divides 689 without a remainder.

1, 13, 53, 689

Divisors of 445

List of positive integer divisors of 445 that divides 445 without a remainder.

1, 5, 89, 445

Greatest Common Divisior

We found the divisors of 661, 877, 689, 445 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 877, 689, 445 is 1.

Therefore, GCD of numbers 661, 877, 689, 445 is 1

Given Input Data is 661, 877, 689, 445

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

Prime Factorization of 661 is 661

Prime Factorization of 877 is 877

Prime Factorization of 689 is 13 x 53

Prime Factorization of 445 is 5 x 89

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, 877) = 579697

GCD(661, 877) = ( 661 x 877 ) / 579697

GCD(661, 877) = 579697 / 579697

GCD(661, 877) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 689

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

LCM(1, 689) = 689

GCD(1, 689) = ( 1 x 689 ) / 689

GCD(1, 689) = 689 / 689

GCD(1, 689) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 445

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

LCM(1, 445) = 445

GCD(1, 445) = ( 1 x 445 ) / 445

GCD(1, 445) = 445 / 445

GCD(1, 445) = 1

GCD of 661, 877, 689, 445 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 958, 728, 952, 457
• GCD of 131, 135, 949, 526
• GCD of 636, 360, 800, 807
• GCD of 658, 136, 497, 653
• GCD of 387, 288, 216, 780

1. What is the GCD of 661, 877, 689, 445?

GCD of 661, 877, 689, 445 is 1

2. Where do I get the detailed procedure to find GCD of 661, 877, 689, 445?

You can find a detailed procedure to find GCD of 661, 877, 689, 445 on our page.

3. How to find GCD of 661, 877, 689, 445 on a calculator?

You can find the GCD of 661, 877, 689, 445 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.