GCD of 240, 420, 641 Calculator

Given Input numbers are 240, 420, 641

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

Divisors of 240

List of positive integer divisors of 240 that divides 240 without a remainder.

1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240

Divisors of 420

List of positive integer divisors of 420 that divides 420 without a remainder.

1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420

Divisors of 641

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

1, 641

Greatest Common Divisior

We found the divisors of 240, 420, 641 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 240, 420, 641 is 1.

Therefore, GCD of numbers 240, 420, 641 is 1

Given Input Data is 240, 420, 641

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

Prime Factorization of 240 is 2 x 2 x 2 x 2 x 3 x 5

Prime Factorization of 420 is 2 x 2 x 3 x 5 x 7

Prime Factorization of 641 is 641

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(240, 420) = 1680

GCD(240, 420) = ( 240 x 420 ) / 1680

GCD(240, 420) = 100800 / 1680

GCD(240, 420) = 60

Step2:

Here we consider the GCD from the above i.e. 60 as first number and the next as 641

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

LCM(60, 641) = 38460

GCD(60, 641) = ( 60 x 641 ) / 38460

GCD(60, 641) = 38460 / 38460

GCD(60, 641) = 1

GCD of 240, 420, 641 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 491, 420, 281
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• GCD of 747, 241, 148
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1. What is the GCD of 240, 420, 641?

GCD of 240, 420, 641 is 1

2. Where do I get the detailed procedure to find GCD of 240, 420, 641?

You can find a detailed procedure to find GCD of 240, 420, 641 on our page.

3. How to find GCD of 240, 420, 641 on a calculator?

You can find the GCD of 240, 420, 641 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.