GCD of 690, 474, 26, 985 Calculator

Given Input numbers are 690, 474, 26, 985

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 474

List of positive integer divisors of 474 that divides 474 without a remainder.

1, 2, 3, 6, 79, 158, 237, 474

Divisors of 26

List of positive integer divisors of 26 that divides 26 without a remainder.

1, 2, 13, 26

Divisors of 985

List of positive integer divisors of 985 that divides 985 without a remainder.

1, 5, 197, 985

Greatest Common Divisior

We found the divisors of 690, 474, 26, 985 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 690, 474, 26, 985 is 1.

Therefore, GCD of numbers 690, 474, 26, 985 is 1

Given Input Data is 690, 474, 26, 985

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 474 is 2 x 3 x 79

Prime Factorization of 26 is 2 x 13

Prime Factorization of 985 is 5 x 197

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, 474) = 54510

GCD(690, 474) = ( 690 x 474 ) / 54510

GCD(690, 474) = 327060 / 54510

GCD(690, 474) = 6

Step2:

Here we consider the GCD from the above i.e. 6 as first number and the next as 26

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

LCM(6, 26) = 78

GCD(6, 26) = ( 6 x 26 ) / 78

GCD(6, 26) = 156 / 78

GCD(6, 26) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 985

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

LCM(2, 985) = 1970

GCD(2, 985) = ( 2 x 985 ) / 1970

GCD(2, 985) = 1970 / 1970

GCD(2, 985) = 1

GCD of 690, 474, 26, 985 is 1

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1. What is the GCD of 690, 474, 26, 985?

GCD of 690, 474, 26, 985 is 1

2. Where do I get the detailed procedure to find GCD of 690, 474, 26, 985?

You can find a detailed procedure to find GCD of 690, 474, 26, 985 on our page.

3. How to find GCD of 690, 474, 26, 985 on a calculator?

You can find the GCD of 690, 474, 26, 985 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.