GCD of 663, 672, 76, 765 Calculator

Given Input numbers are 663, 672, 76, 765

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

Divisors of 663

List of positive integer divisors of 663 that divides 663 without a remainder.

1, 3, 13, 17, 39, 51, 221, 663

Divisors of 672

List of positive integer divisors of 672 that divides 672 without a remainder.

1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 84, 96, 112, 168, 224, 336, 672

Divisors of 76

List of positive integer divisors of 76 that divides 76 without a remainder.

1, 2, 4, 19, 38, 76

Divisors of 765

List of positive integer divisors of 765 that divides 765 without a remainder.

1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765

Greatest Common Divisior

We found the divisors of 663, 672, 76, 765 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 663, 672, 76, 765 is 1.

Therefore, GCD of numbers 663, 672, 76, 765 is 1

Given Input Data is 663, 672, 76, 765

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

Prime Factorization of 663 is 3 x 13 x 17

Prime Factorization of 672 is 2 x 2 x 2 x 2 x 2 x 3 x 7

Prime Factorization of 76 is 2 x 2 x 19

Prime Factorization of 765 is 3 x 3 x 5 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(663, 672) = 148512

GCD(663, 672) = ( 663 x 672 ) / 148512

GCD(663, 672) = 445536 / 148512

GCD(663, 672) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 76

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

LCM(3, 76) = 228

GCD(3, 76) = ( 3 x 76 ) / 228

GCD(3, 76) = 228 / 228

GCD(3, 76) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 765

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

LCM(1, 765) = 765

GCD(1, 765) = ( 1 x 765 ) / 765

GCD(1, 765) = 765 / 765

GCD(1, 765) = 1

GCD of 663, 672, 76, 765 is 1

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1. What is the GCD of 663, 672, 76, 765?

GCD of 663, 672, 76, 765 is 1

2. Where do I get the detailed procedure to find GCD of 663, 672, 76, 765?

You can find a detailed procedure to find GCD of 663, 672, 76, 765 on our page.

3. How to find GCD of 663, 672, 76, 765 on a calculator?

You can find the GCD of 663, 672, 76, 765 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.