GCD of 453, 787, 66, 840 Calculator

Given Input numbers are 453, 787, 66, 840

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

Divisors of 453

List of positive integer divisors of 453 that divides 453 without a remainder.

1, 3, 151, 453

Divisors of 787

List of positive integer divisors of 787 that divides 787 without a remainder.

1, 787

Divisors of 66

List of positive integer divisors of 66 that divides 66 without a remainder.

1, 2, 3, 6, 11, 22, 33, 66

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 453, 787, 66, 840 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 453, 787, 66, 840 is 1.

Therefore, GCD of numbers 453, 787, 66, 840 is 1

Given Input Data is 453, 787, 66, 840

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

Prime Factorization of 453 is 3 x 151

Prime Factorization of 787 is 787

Prime Factorization of 66 is 2 x 3 x 11

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(453, 787) = 356511

GCD(453, 787) = ( 453 x 787 ) / 356511

GCD(453, 787) = 356511 / 356511

GCD(453, 787) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 66

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

LCM(1, 66) = 66

GCD(1, 66) = ( 1 x 66 ) / 66

GCD(1, 66) = 66 / 66

GCD(1, 66) = 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 453, 787, 66, 840 is 1

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1. What is the GCD of 453, 787, 66, 840?

GCD of 453, 787, 66, 840 is 1

2. Where do I get the detailed procedure to find GCD of 453, 787, 66, 840?

You can find a detailed procedure to find GCD of 453, 787, 66, 840 on our page.

3. How to find GCD of 453, 787, 66, 840 on a calculator?

You can find the GCD of 453, 787, 66, 840 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.