GCD of 399, 840, 547, 437 Calculator

Given Input numbers are 399, 840, 547, 437

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

Divisors of 399

List of positive integer divisors of 399 that divides 399 without a remainder.

1, 3, 7, 19, 21, 57, 133, 399

Divisors of 840

List of positive integer divisors of 840 that divides 840 without a remainder.

1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840

Divisors of 547

List of positive integer divisors of 547 that divides 547 without a remainder.

1, 547

Divisors of 437

List of positive integer divisors of 437 that divides 437 without a remainder.

1, 19, 23, 437

Greatest Common Divisior

We found the divisors of 399, 840, 547, 437 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 399, 840, 547, 437 is 1.

Therefore, GCD of numbers 399, 840, 547, 437 is 1

Given Input Data is 399, 840, 547, 437

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

Prime Factorization of 399 is 3 x 7 x 19

Prime Factorization of 840 is 2 x 2 x 2 x 3 x 5 x 7

Prime Factorization of 547 is 547

Prime Factorization of 437 is 19 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(399, 840) = 15960

GCD(399, 840) = ( 399 x 840 ) / 15960

GCD(399, 840) = 335160 / 15960

GCD(399, 840) = 21

Step2:

Here we consider the GCD from the above i.e. 21 as first number and the next as 547

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

LCM(21, 547) = 11487

GCD(21, 547) = ( 21 x 547 ) / 11487

GCD(21, 547) = 11487 / 11487

GCD(21, 547) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 437

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

LCM(1, 437) = 437

GCD(1, 437) = ( 1 x 437 ) / 437

GCD(1, 437) = 437 / 437

GCD(1, 437) = 1

GCD of 399, 840, 547, 437 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 183, 896, 118, 898
• GCD of 606, 990, 600, 228
• GCD of 440, 844, 884, 148
• GCD of 689, 985, 798, 764
• GCD of 766, 453, 989, 862

1. What is the GCD of 399, 840, 547, 437?

GCD of 399, 840, 547, 437 is 1

2. Where do I get the detailed procedure to find GCD of 399, 840, 547, 437?

You can find a detailed procedure to find GCD of 399, 840, 547, 437 on our page.

3. How to find GCD of 399, 840, 547, 437 on a calculator?

You can find the GCD of 399, 840, 547, 437 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.