GCD of 155, 162, 902, 640 Calculator

Given Input numbers are 155, 162, 902, 640

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

Divisors of 155

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

1, 5, 31, 155

Divisors of 162

List of positive integer divisors of 162 that divides 162 without a remainder.

1, 2, 3, 6, 9, 18, 27, 54, 81, 162

Divisors of 902

List of positive integer divisors of 902 that divides 902 without a remainder.

1, 2, 11, 22, 41, 82, 451, 902

Divisors of 640

List of positive integer divisors of 640 that divides 640 without a remainder.

1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640

Greatest Common Divisior

We found the divisors of 155, 162, 902, 640 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 155, 162, 902, 640 is 1.

Therefore, GCD of numbers 155, 162, 902, 640 is 1

Given Input Data is 155, 162, 902, 640

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

Prime Factorization of 155 is 5 x 31

Prime Factorization of 162 is 2 x 3 x 3 x 3 x 3

Prime Factorization of 902 is 2 x 11 x 41

Prime Factorization of 640 is 2 x 2 x 2 x 2 x 2 x 2 x 2 x 5

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(155, 162) = 25110

GCD(155, 162) = ( 155 x 162 ) / 25110

GCD(155, 162) = 25110 / 25110

GCD(155, 162) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 902

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

LCM(1, 902) = 902

GCD(1, 902) = ( 1 x 902 ) / 902

GCD(1, 902) = 902 / 902

GCD(1, 902) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 640

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

LCM(1, 640) = 640

GCD(1, 640) = ( 1 x 640 ) / 640

GCD(1, 640) = 640 / 640

GCD(1, 640) = 1

GCD of 155, 162, 902, 640 is 1

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1. What is the GCD of 155, 162, 902, 640?

GCD of 155, 162, 902, 640 is 1

2. Where do I get the detailed procedure to find GCD of 155, 162, 902, 640?

You can find a detailed procedure to find GCD of 155, 162, 902, 640 on our page.

3. How to find GCD of 155, 162, 902, 640 on a calculator?

You can find the GCD of 155, 162, 902, 640 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.