GCD of 690, 716, 91, 665 Calculator

Given Input numbers are 690, 716, 91, 665

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

Divisors of 690

List of positive integer divisors of 690 that divides 690 without a remainder.

1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690

Divisors of 716

List of positive integer divisors of 716 that divides 716 without a remainder.

1, 2, 4, 179, 358, 716

Divisors of 91

List of positive integer divisors of 91 that divides 91 without a remainder.

1, 7, 13, 91

Divisors of 665

List of positive integer divisors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133, 665

Greatest Common Divisior

We found the divisors of 690, 716, 91, 665 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 690, 716, 91, 665 is 1.

Therefore, GCD of numbers 690, 716, 91, 665 is 1

Given Input Data is 690, 716, 91, 665

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

Prime Factorization of 690 is 2 x 3 x 5 x 23

Prime Factorization of 716 is 2 x 2 x 179

Prime Factorization of 91 is 7 x 13

Prime Factorization of 665 is 5 x 7 x 19

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(690, 716) = 247020

GCD(690, 716) = ( 690 x 716 ) / 247020

GCD(690, 716) = 494040 / 247020

GCD(690, 716) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 91

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

LCM(2, 91) = 182

GCD(2, 91) = ( 2 x 91 ) / 182

GCD(2, 91) = 182 / 182

GCD(2, 91) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 665

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

LCM(1, 665) = 665

GCD(1, 665) = ( 1 x 665 ) / 665

GCD(1, 665) = 665 / 665

GCD(1, 665) = 1

GCD of 690, 716, 91, 665 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 572, 517, 30, 461
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• GCD of 498, 204, 42, 623

1. What is the GCD of 690, 716, 91, 665?

GCD of 690, 716, 91, 665 is 1

2. Where do I get the detailed procedure to find GCD of 690, 716, 91, 665?

You can find a detailed procedure to find GCD of 690, 716, 91, 665 on our page.

3. How to find GCD of 690, 716, 91, 665 on a calculator?

You can find the GCD of 690, 716, 91, 665 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.