GCD of 661, 780, 264, 122 Calculator

Given Input numbers are 661, 780, 264, 122

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 780

List of positive integer divisors of 780 that divides 780 without a remainder.

1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780

Divisors of 264

List of positive integer divisors of 264 that divides 264 without a remainder.

1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 44, 66, 88, 132, 264

Divisors of 122

List of positive integer divisors of 122 that divides 122 without a remainder.

1, 2, 61, 122

Greatest Common Divisior

We found the divisors of 661, 780, 264, 122 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 661, 780, 264, 122 is 1.

Therefore, GCD of numbers 661, 780, 264, 122 is 1

Given Input Data is 661, 780, 264, 122

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

Prime Factorization of 661 is 661

Prime Factorization of 780 is 2 x 2 x 3 x 5 x 13

Prime Factorization of 264 is 2 x 2 x 2 x 3 x 11

Prime Factorization of 122 is 2 x 61

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, 780) = 515580

GCD(661, 780) = ( 661 x 780 ) / 515580

GCD(661, 780) = 515580 / 515580

GCD(661, 780) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 264

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

LCM(1, 264) = 264

GCD(1, 264) = ( 1 x 264 ) / 264

GCD(1, 264) = 264 / 264

GCD(1, 264) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 122

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

LCM(1, 122) = 122

GCD(1, 122) = ( 1 x 122 ) / 122

GCD(1, 122) = 122 / 122

GCD(1, 122) = 1

GCD of 661, 780, 264, 122 is 1

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1. What is the GCD of 661, 780, 264, 122?

GCD of 661, 780, 264, 122 is 1

2. Where do I get the detailed procedure to find GCD of 661, 780, 264, 122?

You can find a detailed procedure to find GCD of 661, 780, 264, 122 on our page.

3. How to find GCD of 661, 780, 264, 122 on a calculator?

You can find the GCD of 661, 780, 264, 122 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.