GCD of 280, 840, 942, 397 Calculator

Given Input numbers are 280, 840, 942, 397

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

Divisors of 280

List of positive integer divisors of 280 that divides 280 without a remainder.

1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280

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 942

List of positive integer divisors of 942 that divides 942 without a remainder.

1, 2, 3, 6, 157, 314, 471, 942

Divisors of 397

List of positive integer divisors of 397 that divides 397 without a remainder.

1, 397

Greatest Common Divisior

We found the divisors of 280, 840, 942, 397 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 280, 840, 942, 397 is 1.

Therefore, GCD of numbers 280, 840, 942, 397 is 1

Given Input Data is 280, 840, 942, 397

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

Prime Factorization of 280 is 2 x 2 x 2 x 5 x 7

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

Prime Factorization of 942 is 2 x 3 x 157

Prime Factorization of 397 is 397

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(280, 840) = 840

GCD(280, 840) = ( 280 x 840 ) / 840

GCD(280, 840) = 235200 / 840

GCD(280, 840) = 280

Step2:

Here we consider the GCD from the above i.e. 280 as first number and the next as 942

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

LCM(280, 942) = 131880

GCD(280, 942) = ( 280 x 942 ) / 131880

GCD(280, 942) = 263760 / 131880

GCD(280, 942) = 2

Step3:

Here we consider the GCD from the above i.e. 2 as first number and the next as 397

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

LCM(2, 397) = 794

GCD(2, 397) = ( 2 x 397 ) / 794

GCD(2, 397) = 794 / 794

GCD(2, 397) = 1

GCD of 280, 840, 942, 397 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 180, 542, 235, 389
• GCD of 695, 898, 517, 981
• GCD of 157, 735, 686, 398
• GCD of 476, 364, 120, 972
• GCD of 413, 379, 349, 626

1. What is the GCD of 280, 840, 942, 397?

GCD of 280, 840, 942, 397 is 1

2. Where do I get the detailed procedure to find GCD of 280, 840, 942, 397?

You can find a detailed procedure to find GCD of 280, 840, 942, 397 on our page.

3. How to find GCD of 280, 840, 942, 397 on a calculator?

You can find the GCD of 280, 840, 942, 397 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.