GCD of 91, 172, 155, 763 Calculator

Given Input numbers are 91, 172, 155, 763

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

Divisors of 91

List of positive integer divisors of 91 that divides 91 without a remainder.

1, 7, 13, 91

Divisors of 172

List of positive integer divisors of 172 that divides 172 without a remainder.

1, 2, 4, 43, 86, 172

Divisors of 155

List of positive integer divisors of 155 that divides 155 without a remainder.

1, 5, 31, 155

Divisors of 763

List of positive integer divisors of 763 that divides 763 without a remainder.

1, 7, 109, 763

Greatest Common Divisior

We found the divisors of 91, 172, 155, 763 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 91, 172, 155, 763 is 1.

Therefore, GCD of numbers 91, 172, 155, 763 is 1

Given Input Data is 91, 172, 155, 763

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

Prime Factorization of 91 is 7 x 13

Prime Factorization of 172 is 2 x 2 x 43

Prime Factorization of 155 is 5 x 31

Prime Factorization of 763 is 7 x 109

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(91, 172) = 15652

GCD(91, 172) = ( 91 x 172 ) / 15652

GCD(91, 172) = 15652 / 15652

GCD(91, 172) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 155

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

LCM(1, 155) = 155

GCD(1, 155) = ( 1 x 155 ) / 155

GCD(1, 155) = 155 / 155

GCD(1, 155) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 763

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

LCM(1, 763) = 763

GCD(1, 763) = ( 1 x 763 ) / 763

GCD(1, 763) = 763 / 763

GCD(1, 763) = 1

GCD of 91, 172, 155, 763 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 56, 997, 790, 132
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• GCD of 63, 433, 554, 354
• GCD of 67, 871, 939, 297

1. What is the GCD of 91, 172, 155, 763?

GCD of 91, 172, 155, 763 is 1

2. Where do I get the detailed procedure to find GCD of 91, 172, 155, 763?

You can find a detailed procedure to find GCD of 91, 172, 155, 763 on our page.

3. How to find GCD of 91, 172, 155, 763 on a calculator?

You can find the GCD of 91, 172, 155, 763 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.