GCD of 651, 765, 676, 688 Calculator

Given Input numbers are 651, 765, 676, 688

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

Divisors of 651

List of positive integer divisors of 651 that divides 651 without a remainder.

1, 3, 7, 21, 31, 93, 217, 651

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

Divisors of 676

List of positive integer divisors of 676 that divides 676 without a remainder.

1, 2, 4, 13, 26, 52, 169, 338, 676

Divisors of 688

List of positive integer divisors of 688 that divides 688 without a remainder.

1, 2, 4, 8, 16, 43, 86, 172, 344, 688

Greatest Common Divisior

We found the divisors of 651, 765, 676, 688 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 651, 765, 676, 688 is 1.

Therefore, GCD of numbers 651, 765, 676, 688 is 1

Given Input Data is 651, 765, 676, 688

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

Prime Factorization of 651 is 3 x 7 x 31

Prime Factorization of 765 is 3 x 3 x 5 x 17

Prime Factorization of 676 is 2 x 2 x 13 x 13

Prime Factorization of 688 is 2 x 2 x 2 x 2 x 43

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(651, 765) = 166005

GCD(651, 765) = ( 651 x 765 ) / 166005

GCD(651, 765) = 498015 / 166005

GCD(651, 765) = 3

Step2:

Here we consider the GCD from the above i.e. 3 as first number and the next as 676

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

LCM(3, 676) = 2028

GCD(3, 676) = ( 3 x 676 ) / 2028

GCD(3, 676) = 2028 / 2028

GCD(3, 676) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 688

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

LCM(1, 688) = 688

GCD(1, 688) = ( 1 x 688 ) / 688

GCD(1, 688) = 688 / 688

GCD(1, 688) = 1

GCD of 651, 765, 676, 688 is 1

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1. What is the GCD of 651, 765, 676, 688?

GCD of 651, 765, 676, 688 is 1

2. Where do I get the detailed procedure to find GCD of 651, 765, 676, 688?

You can find a detailed procedure to find GCD of 651, 765, 676, 688 on our page.

3. How to find GCD of 651, 765, 676, 688 on a calculator?

You can find the GCD of 651, 765, 676, 688 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.