GCD of 436, 687, 680, 769 Calculator

Given Input numbers are 436, 687, 680, 769

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

Divisors of 436

List of positive integer divisors of 436 that divides 436 without a remainder.

1, 2, 4, 109, 218, 436

Divisors of 687

List of positive integer divisors of 687 that divides 687 without a remainder.

1, 3, 229, 687

Divisors of 680

List of positive integer divisors of 680 that divides 680 without a remainder.

1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680

Divisors of 769

List of positive integer divisors of 769 that divides 769 without a remainder.

1, 769

Greatest Common Divisior

We found the divisors of 436, 687, 680, 769 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 436, 687, 680, 769 is 1.

Therefore, GCD of numbers 436, 687, 680, 769 is 1

Given Input Data is 436, 687, 680, 769

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

Prime Factorization of 436 is 2 x 2 x 109

Prime Factorization of 687 is 3 x 229

Prime Factorization of 680 is 2 x 2 x 2 x 5 x 17

Prime Factorization of 769 is 769

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(436, 687) = 299532

GCD(436, 687) = ( 436 x 687 ) / 299532

GCD(436, 687) = 299532 / 299532

GCD(436, 687) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 680

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

LCM(1, 680) = 680

GCD(1, 680) = ( 1 x 680 ) / 680

GCD(1, 680) = 680 / 680

GCD(1, 680) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 769

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

LCM(1, 769) = 769

GCD(1, 769) = ( 1 x 769 ) / 769

GCD(1, 769) = 769 / 769

GCD(1, 769) = 1

GCD of 436, 687, 680, 769 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 588, 677, 201, 595
• GCD of 917, 985, 349, 726
• GCD of 581, 915, 245, 909
• GCD of 788, 545, 258, 759
• GCD of 195, 836, 962, 884

1. What is the GCD of 436, 687, 680, 769?

GCD of 436, 687, 680, 769 is 1

2. Where do I get the detailed procedure to find GCD of 436, 687, 680, 769?

You can find a detailed procedure to find GCD of 436, 687, 680, 769 on our page.

3. How to find GCD of 436, 687, 680, 769 on a calculator?

You can find the GCD of 436, 687, 680, 769 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.