GCD of 770, 661, 747 Calculator

Given Input numbers are 770, 661, 747

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

Divisors of 770

List of positive integer divisors of 770 that divides 770 without a remainder.

1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770

Divisors of 661

List of positive integer divisors of 661 that divides 661 without a remainder.

1, 661

Divisors of 747

List of positive integer divisors of 747 that divides 747 without a remainder.

1, 3, 9, 83, 249, 747

Greatest Common Divisior

We found the divisors of 770, 661, 747 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 770, 661, 747 is 1.

Therefore, GCD of numbers 770, 661, 747 is 1

Given Input Data is 770, 661, 747

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

Prime Factorization of 770 is 2 x 5 x 7 x 11

Prime Factorization of 661 is 661

Prime Factorization of 747 is 3 x 3 x 83

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(770, 661) = 508970

GCD(770, 661) = ( 770 x 661 ) / 508970

GCD(770, 661) = 508970 / 508970

GCD(770, 661) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 747

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

LCM(1, 747) = 747

GCD(1, 747) = ( 1 x 747 ) / 747

GCD(1, 747) = 747 / 747

GCD(1, 747) = 1

GCD of 770, 661, 747 is 1

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1. What is the GCD of 770, 661, 747?

GCD of 770, 661, 747 is 1

2. Where do I get the detailed procedure to find GCD of 770, 661, 747?

You can find a detailed procedure to find GCD of 770, 661, 747 on our page.

3. How to find GCD of 770, 661, 747 on a calculator?

You can find the GCD of 770, 661, 747 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.