GCD of 661, 177, 665, 202 Calculator

Given Input numbers are 661, 177, 665, 202

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 177

List of positive integer divisors of 177 that divides 177 without a remainder.

1, 3, 59, 177

Divisors of 665

List of positive integer divisors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133, 665

Divisors of 202

List of positive integer divisors of 202 that divides 202 without a remainder.

1, 2, 101, 202

Greatest Common Divisior

We found the divisors of 661, 177, 665, 202 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 177, 665, 202 is 1.

Therefore, GCD of numbers 661, 177, 665, 202 is 1

Given Input Data is 661, 177, 665, 202

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

Prime Factorization of 661 is 661

Prime Factorization of 177 is 3 x 59

Prime Factorization of 665 is 5 x 7 x 19

Prime Factorization of 202 is 2 x 101

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, 177) = 116997

GCD(661, 177) = ( 661 x 177 ) / 116997

GCD(661, 177) = 116997 / 116997

GCD(661, 177) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 665

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

LCM(1, 665) = 665

GCD(1, 665) = ( 1 x 665 ) / 665

GCD(1, 665) = 665 / 665

GCD(1, 665) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 202

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

LCM(1, 202) = 202

GCD(1, 202) = ( 1 x 202 ) / 202

GCD(1, 202) = 202 / 202

GCD(1, 202) = 1

GCD of 661, 177, 665, 202 is 1

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1. What is the GCD of 661, 177, 665, 202?

GCD of 661, 177, 665, 202 is 1

2. Where do I get the detailed procedure to find GCD of 661, 177, 665, 202?

You can find a detailed procedure to find GCD of 661, 177, 665, 202 on our page.

3. How to find GCD of 661, 177, 665, 202 on a calculator?

You can find the GCD of 661, 177, 665, 202 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.