GCD of 647, 178, 10, 172 Calculator

Given Input numbers are 647, 178, 10, 172

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

Divisors of 647

List of positive integer divisors of 647 that divides 647 without a remainder.

1, 647

Divisors of 178

List of positive integer divisors of 178 that divides 178 without a remainder.

1, 2, 89, 178

Divisors of 10

List of positive integer divisors of 10 that divides 10 without a remainder.

1, 2, 5, 10

Divisors of 172

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

1, 2, 4, 43, 86, 172

Greatest Common Divisior

We found the divisors of 647, 178, 10, 172 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 647, 178, 10, 172 is 1.

Therefore, GCD of numbers 647, 178, 10, 172 is 1

Given Input Data is 647, 178, 10, 172

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

Prime Factorization of 647 is 647

Prime Factorization of 178 is 2 x 89

Prime Factorization of 10 is 2 x 5

Prime Factorization of 172 is 2 x 2 x 43

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(647, 178) = 115166

GCD(647, 178) = ( 647 x 178 ) / 115166

GCD(647, 178) = 115166 / 115166

GCD(647, 178) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 10

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

LCM(1, 10) = 10

GCD(1, 10) = ( 1 x 10 ) / 10

GCD(1, 10) = 10 / 10

GCD(1, 10) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 172

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

LCM(1, 172) = 172

GCD(1, 172) = ( 1 x 172 ) / 172

GCD(1, 172) = 172 / 172

GCD(1, 172) = 1

GCD of 647, 178, 10, 172 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 861, 318, 37, 558
• GCD of 955, 800, 94, 171
• GCD of 521, 428, 47, 511
• GCD of 621, 391, 68, 220
• GCD of 473, 524, 50, 532

1. What is the GCD of 647, 178, 10, 172?

GCD of 647, 178, 10, 172 is 1

2. Where do I get the detailed procedure to find GCD of 647, 178, 10, 172?

You can find a detailed procedure to find GCD of 647, 178, 10, 172 on our page.

3. How to find GCD of 647, 178, 10, 172 on a calculator?

You can find the GCD of 647, 178, 10, 172 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.