GCD of 221, 402, 442, 207 Calculator

Given Input numbers are 221, 402, 442, 207

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

Divisors of 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Divisors of 402

List of positive integer divisors of 402 that divides 402 without a remainder.

1, 2, 3, 6, 67, 134, 201, 402

Divisors of 442

List of positive integer divisors of 442 that divides 442 without a remainder.

1, 2, 13, 17, 26, 34, 221, 442

Divisors of 207

List of positive integer divisors of 207 that divides 207 without a remainder.

1, 3, 9, 23, 69, 207

Greatest Common Divisior

We found the divisors of 221, 402, 442, 207 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 221, 402, 442, 207 is 1.

Therefore, GCD of numbers 221, 402, 442, 207 is 1

Given Input Data is 221, 402, 442, 207

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

Prime Factorization of 221 is 13 x 17

Prime Factorization of 402 is 2 x 3 x 67

Prime Factorization of 442 is 2 x 13 x 17

Prime Factorization of 207 is 3 x 3 x 23

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(221, 402) = 88842

GCD(221, 402) = ( 221 x 402 ) / 88842

GCD(221, 402) = 88842 / 88842

GCD(221, 402) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 442

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

LCM(1, 442) = 442

GCD(1, 442) = ( 1 x 442 ) / 442

GCD(1, 442) = 442 / 442

GCD(1, 442) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 207

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

LCM(1, 207) = 207

GCD(1, 207) = ( 1 x 207 ) / 207

GCD(1, 207) = 207 / 207

GCD(1, 207) = 1

GCD of 221, 402, 442, 207 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 990, 260, 580, 442
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• GCD of 924, 148, 762, 739
• GCD of 901, 275, 265, 321

1. What is the GCD of 221, 402, 442, 207?

GCD of 221, 402, 442, 207 is 1

2. Where do I get the detailed procedure to find GCD of 221, 402, 442, 207?

You can find a detailed procedure to find GCD of 221, 402, 442, 207 on our page.

3. How to find GCD of 221, 402, 442, 207 on a calculator?

You can find the GCD of 221, 402, 442, 207 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.