GCD of 428, 997, 564, 840 Calculator

Given Input numbers are 428, 997, 564, 840

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

Divisors of 428

List of positive integer divisors of 428 that divides 428 without a remainder.

1, 2, 4, 107, 214, 428

Divisors of 997

List of positive integer divisors of 997 that divides 997 without a remainder.

1, 997

Divisors of 564

List of positive integer divisors of 564 that divides 564 without a remainder.

1, 2, 3, 4, 6, 12, 47, 94, 141, 188, 282, 564

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

Greatest Common Divisior

We found the divisors of 428, 997, 564, 840 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 428, 997, 564, 840 is 1.

Therefore, GCD of numbers 428, 997, 564, 840 is 1

Given Input Data is 428, 997, 564, 840

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

Prime Factorization of 428 is 2 x 2 x 107

Prime Factorization of 997 is 997

Prime Factorization of 564 is 2 x 2 x 3 x 47

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

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(428, 997) = 426716

GCD(428, 997) = ( 428 x 997 ) / 426716

GCD(428, 997) = 426716 / 426716

GCD(428, 997) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 564

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

LCM(1, 564) = 564

GCD(1, 564) = ( 1 x 564 ) / 564

GCD(1, 564) = 564 / 564

GCD(1, 564) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 840

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

LCM(1, 840) = 840

GCD(1, 840) = ( 1 x 840 ) / 840

GCD(1, 840) = 840 / 840

GCD(1, 840) = 1

GCD of 428, 997, 564, 840 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 464, 346, 571, 457
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• GCD of 477, 348, 828, 510
• GCD of 599, 374, 785, 398
• GCD of 840, 856, 598, 503

1. What is the GCD of 428, 997, 564, 840?

GCD of 428, 997, 564, 840 is 1

2. Where do I get the detailed procedure to find GCD of 428, 997, 564, 840?

You can find a detailed procedure to find GCD of 428, 997, 564, 840 on our page.

3. How to find GCD of 428, 997, 564, 840 on a calculator?

You can find the GCD of 428, 997, 564, 840 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.