GCD of 343, 641, 289, 156 Calculator

Given Input numbers are 343, 641, 289, 156

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

Divisors of 343

List of positive integer divisors of 343 that divides 343 without a remainder.

1, 7, 49, 343

Divisors of 641

List of positive integer divisors of 641 that divides 641 without a remainder.

1, 641

Divisors of 289

List of positive integer divisors of 289 that divides 289 without a remainder.

1, 17, 289

Divisors of 156

List of positive integer divisors of 156 that divides 156 without a remainder.

1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156

Greatest Common Divisior

We found the divisors of 343, 641, 289, 156 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 343, 641, 289, 156 is 1.

Therefore, GCD of numbers 343, 641, 289, 156 is 1

Given Input Data is 343, 641, 289, 156

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

Prime Factorization of 343 is 7 x 7 x 7

Prime Factorization of 641 is 641

Prime Factorization of 289 is 17 x 17

Prime Factorization of 156 is 2 x 2 x 3 x 13

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(343, 641) = 219863

GCD(343, 641) = ( 343 x 641 ) / 219863

GCD(343, 641) = 219863 / 219863

GCD(343, 641) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 289

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

LCM(1, 289) = 289

GCD(1, 289) = ( 1 x 289 ) / 289

GCD(1, 289) = 289 / 289

GCD(1, 289) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 156

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

LCM(1, 156) = 156

GCD(1, 156) = ( 1 x 156 ) / 156

GCD(1, 156) = 156 / 156

GCD(1, 156) = 1

GCD of 343, 641, 289, 156 is 1

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1. What is the GCD of 343, 641, 289, 156?

GCD of 343, 641, 289, 156 is 1

2. Where do I get the detailed procedure to find GCD of 343, 641, 289, 156?

You can find a detailed procedure to find GCD of 343, 641, 289, 156 on our page.

3. How to find GCD of 343, 641, 289, 156 on a calculator?

You can find the GCD of 343, 641, 289, 156 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.