GCD of 643, 332, 661, 386 Calculator

Given Input numbers are 643, 332, 661, 386

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

Divisors of 643

List of positive integer divisors of 643 that divides 643 without a remainder.

1, 643

Divisors of 332

List of positive integer divisors of 332 that divides 332 without a remainder.

1, 2, 4, 83, 166, 332

Divisors of 661

List of positive integer divisors of 661 that divides 661 without a remainder.

1, 661

Divisors of 386

List of positive integer divisors of 386 that divides 386 without a remainder.

1, 2, 193, 386

Greatest Common Divisior

We found the divisors of 643, 332, 661, 386 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 643, 332, 661, 386 is 1.

Therefore, GCD of numbers 643, 332, 661, 386 is 1

Given Input Data is 643, 332, 661, 386

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

Prime Factorization of 643 is 643

Prime Factorization of 332 is 2 x 2 x 83

Prime Factorization of 661 is 661

Prime Factorization of 386 is 2 x 193

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(643, 332) = 213476

GCD(643, 332) = ( 643 x 332 ) / 213476

GCD(643, 332) = 213476 / 213476

GCD(643, 332) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 661

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

LCM(1, 661) = 661

GCD(1, 661) = ( 1 x 661 ) / 661

GCD(1, 661) = 661 / 661

GCD(1, 661) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 386

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

LCM(1, 386) = 386

GCD(1, 386) = ( 1 x 386 ) / 386

GCD(1, 386) = 386 / 386

GCD(1, 386) = 1

GCD of 643, 332, 661, 386 is 1

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1. What is the GCD of 643, 332, 661, 386?

GCD of 643, 332, 661, 386 is 1

2. Where do I get the detailed procedure to find GCD of 643, 332, 661, 386?

You can find a detailed procedure to find GCD of 643, 332, 661, 386 on our page.

3. How to find GCD of 643, 332, 661, 386 on a calculator?

You can find the GCD of 643, 332, 661, 386 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.