GCD of 840, 887, 660, 669 Calculator

Given Input numbers are 840, 887, 660, 669

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

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 887

List of positive integer divisors of 887 that divides 887 without a remainder.

1, 887

Divisors of 660

List of positive integer divisors of 660 that divides 660 without a remainder.

1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660

Divisors of 669

List of positive integer divisors of 669 that divides 669 without a remainder.

1, 3, 223, 669

Greatest Common Divisior

We found the divisors of 840, 887, 660, 669 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 840, 887, 660, 669 is 1.

Therefore, GCD of numbers 840, 887, 660, 669 is 1

Given Input Data is 840, 887, 660, 669

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

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

Prime Factorization of 887 is 887

Prime Factorization of 660 is 2 x 2 x 3 x 5 x 11

Prime Factorization of 669 is 3 x 223

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(840, 887) = 745080

GCD(840, 887) = ( 840 x 887 ) / 745080

GCD(840, 887) = 745080 / 745080

GCD(840, 887) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 660

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

LCM(1, 660) = 660

GCD(1, 660) = ( 1 x 660 ) / 660

GCD(1, 660) = 660 / 660

GCD(1, 660) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 669

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

LCM(1, 669) = 669

GCD(1, 669) = ( 1 x 669 ) / 669

GCD(1, 669) = 669 / 669

GCD(1, 669) = 1

GCD of 840, 887, 660, 669 is 1

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1. What is the GCD of 840, 887, 660, 669?

GCD of 840, 887, 660, 669 is 1

2. Where do I get the detailed procedure to find GCD of 840, 887, 660, 669?

You can find a detailed procedure to find GCD of 840, 887, 660, 669 on our page.

3. How to find GCD of 840, 887, 660, 669 on a calculator?

You can find the GCD of 840, 887, 660, 669 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.