GCD of 690, 802, 778, 121 Calculator

Given Input numbers are 690, 802, 778, 121

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 802

List of positive integer divisors of 802 that divides 802 without a remainder.

1, 2, 401, 802

Divisors of 778

List of positive integer divisors of 778 that divides 778 without a remainder.

1, 2, 389, 778

Divisors of 121

List of positive integer divisors of 121 that divides 121 without a remainder.

1, 11, 121

Greatest Common Divisior

We found the divisors of 690, 802, 778, 121 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 690, 802, 778, 121 is 1.

Therefore, GCD of numbers 690, 802, 778, 121 is 1

Given Input Data is 690, 802, 778, 121

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 802 is 2 x 401

Prime Factorization of 778 is 2 x 389

Prime Factorization of 121 is 11 x 11

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, 802) = 276690

GCD(690, 802) = ( 690 x 802 ) / 276690

GCD(690, 802) = 553380 / 276690

GCD(690, 802) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 778

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

LCM(2, 778) = 778

GCD(2, 778) = ( 2 x 778 ) / 778

GCD(2, 778) = 1556 / 778

GCD(2, 778) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 121

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

LCM(2, 121) = 242

GCD(2, 121) = ( 2 x 121 ) / 242

GCD(2, 121) = 242 / 242

GCD(2, 121) = 1

GCD of 690, 802, 778, 121 is 1

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• GCD of 887, 833, 435, 336
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1. What is the GCD of 690, 802, 778, 121?

GCD of 690, 802, 778, 121 is 1

2. Where do I get the detailed procedure to find GCD of 690, 802, 778, 121?

You can find a detailed procedure to find GCD of 690, 802, 778, 121 on our page.

3. How to find GCD of 690, 802, 778, 121 on a calculator?

You can find the GCD of 690, 802, 778, 121 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.