GCD of 72, 643, 379, 261 Calculator

Given Input numbers are 72, 643, 379, 261

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

Divisors of 72

List of positive integer divisors of 72 that divides 72 without a remainder.

1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72

Divisors of 643

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

1, 643

Divisors of 379

List of positive integer divisors of 379 that divides 379 without a remainder.

1, 379

Divisors of 261

List of positive integer divisors of 261 that divides 261 without a remainder.

1, 3, 9, 29, 87, 261

Greatest Common Divisior

We found the divisors of 72, 643, 379, 261 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 72, 643, 379, 261 is 1.

Therefore, GCD of numbers 72, 643, 379, 261 is 1

Given Input Data is 72, 643, 379, 261

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

Prime Factorization of 72 is 2 x 2 x 2 x 3 x 3

Prime Factorization of 643 is 643

Prime Factorization of 379 is 379

Prime Factorization of 261 is 3 x 3 x 29

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(72, 643) = 46296

GCD(72, 643) = ( 72 x 643 ) / 46296

GCD(72, 643) = 46296 / 46296

GCD(72, 643) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 379

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

LCM(1, 379) = 379

GCD(1, 379) = ( 1 x 379 ) / 379

GCD(1, 379) = 379 / 379

GCD(1, 379) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 261

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

LCM(1, 261) = 261

GCD(1, 261) = ( 1 x 261 ) / 261

GCD(1, 261) = 261 / 261

GCD(1, 261) = 1

GCD of 72, 643, 379, 261 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 41, 590, 806, 147
• GCD of 23, 667, 435, 574
• GCD of 68, 586, 520, 904
• GCD of 49, 754, 159, 159
• GCD of 75, 110, 843, 503

1. What is the GCD of 72, 643, 379, 261?

GCD of 72, 643, 379, 261 is 1

2. Where do I get the detailed procedure to find GCD of 72, 643, 379, 261?

You can find a detailed procedure to find GCD of 72, 643, 379, 261 on our page.

3. How to find GCD of 72, 643, 379, 261 on a calculator?

You can find the GCD of 72, 643, 379, 261 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.