GCD of 787, 730, 991, 670 Calculator

Given Input numbers are 787, 730, 991, 670

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

Divisors of 787

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

1, 787

Divisors of 730

List of positive integer divisors of 730 that divides 730 without a remainder.

1, 2, 5, 10, 73, 146, 365, 730

Divisors of 991

List of positive integer divisors of 991 that divides 991 without a remainder.

1, 991

Divisors of 670

List of positive integer divisors of 670 that divides 670 without a remainder.

1, 2, 5, 10, 67, 134, 335, 670

Greatest Common Divisior

We found the divisors of 787, 730, 991, 670 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 787, 730, 991, 670 is 1.

Therefore, GCD of numbers 787, 730, 991, 670 is 1

Given Input Data is 787, 730, 991, 670

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

Prime Factorization of 787 is 787

Prime Factorization of 730 is 2 x 5 x 73

Prime Factorization of 991 is 991

Prime Factorization of 670 is 2 x 5 x 67

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(787, 730) = 574510

GCD(787, 730) = ( 787 x 730 ) / 574510

GCD(787, 730) = 574510 / 574510

GCD(787, 730) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 991

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

LCM(1, 991) = 991

GCD(1, 991) = ( 1 x 991 ) / 991

GCD(1, 991) = 991 / 991

GCD(1, 991) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 670

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

LCM(1, 670) = 670

GCD(1, 670) = ( 1 x 670 ) / 670

GCD(1, 670) = 670 / 670

GCD(1, 670) = 1

GCD of 787, 730, 991, 670 is 1

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1. What is the GCD of 787, 730, 991, 670?

GCD of 787, 730, 991, 670 is 1

2. Where do I get the detailed procedure to find GCD of 787, 730, 991, 670?

You can find a detailed procedure to find GCD of 787, 730, 991, 670 on our page.

3. How to find GCD of 787, 730, 991, 670 on a calculator?

You can find the GCD of 787, 730, 991, 670 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.