GCD of 660, 623, 78, 763 Calculator

Given Input numbers are 660, 623, 78, 763

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

Divisors of 660

List of positive integer divisors of 660 that divides 660 without a remainder.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

Divisors of 623

List of positive integer divisors of 623 that divides 623 without a remainder.

1, 7, 89, 623

Divisors of 78

List of positive integer divisors of 78 that divides 78 without a remainder.

1, 2, 3, 6, 13, 26, 39, 78

Divisors of 763

List of positive integer divisors of 763 that divides 763 without a remainder.

1, 7, 109, 763

Greatest Common Divisior

We found the divisors of 660, 623, 78, 763 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 660, 623, 78, 763 is 1.

Therefore, GCD of numbers 660, 623, 78, 763 is 1

Given Input Data is 660, 623, 78, 763

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

Prime Factorization of 660 is 2 x 2 x 3 x 5 x 11

Prime Factorization of 623 is 7 x 89

Prime Factorization of 78 is 2 x 3 x 13

Prime Factorization of 763 is 7 x 109

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(660, 623) = 411180

GCD(660, 623) = ( 660 x 623 ) / 411180

GCD(660, 623) = 411180 / 411180

GCD(660, 623) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 78

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

LCM(1, 78) = 78

GCD(1, 78) = ( 1 x 78 ) / 78

GCD(1, 78) = 78 / 78

GCD(1, 78) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 763

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

LCM(1, 763) = 763

GCD(1, 763) = ( 1 x 763 ) / 763

GCD(1, 763) = 763 / 763

GCD(1, 763) = 1

GCD of 660, 623, 78, 763 is 1

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• GCD of 370, 711, 38, 385
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1. What is the GCD of 660, 623, 78, 763?

GCD of 660, 623, 78, 763 is 1

2. Where do I get the detailed procedure to find GCD of 660, 623, 78, 763?

You can find a detailed procedure to find GCD of 660, 623, 78, 763 on our page.

3. How to find GCD of 660, 623, 78, 763 on a calculator?

You can find the GCD of 660, 623, 78, 763 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.