GCD of 145, 568, 972, 639 Calculator

Given Input numbers are 145, 568, 972, 639

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

Divisors of 145

List of positive integer divisors of 145 that divides 145 without a remainder.

1, 5, 29, 145

Divisors of 568

List of positive integer divisors of 568 that divides 568 without a remainder.

1, 2, 4, 8, 71, 142, 284, 568

Divisors of 972

List of positive integer divisors of 972 that divides 972 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972

Divisors of 639

List of positive integer divisors of 639 that divides 639 without a remainder.

1, 3, 9, 71, 213, 639

Greatest Common Divisior

We found the divisors of 145, 568, 972, 639 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 145, 568, 972, 639 is 1.

Therefore, GCD of numbers 145, 568, 972, 639 is 1

Given Input Data is 145, 568, 972, 639

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

Prime Factorization of 145 is 5 x 29

Prime Factorization of 568 is 2 x 2 x 2 x 71

Prime Factorization of 972 is 2 x 2 x 3 x 3 x 3 x 3 x 3

Prime Factorization of 639 is 3 x 3 x 71

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(145, 568) = 82360

GCD(145, 568) = ( 145 x 568 ) / 82360

GCD(145, 568) = 82360 / 82360

GCD(145, 568) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 972

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

LCM(1, 972) = 972

GCD(1, 972) = ( 1 x 972 ) / 972

GCD(1, 972) = 972 / 972

GCD(1, 972) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 639

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

LCM(1, 639) = 639

GCD(1, 639) = ( 1 x 639 ) / 639

GCD(1, 639) = 639 / 639

GCD(1, 639) = 1

GCD of 145, 568, 972, 639 is 1

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1. What is the GCD of 145, 568, 972, 639?

GCD of 145, 568, 972, 639 is 1

2. Where do I get the detailed procedure to find GCD of 145, 568, 972, 639?

You can find a detailed procedure to find GCD of 145, 568, 972, 639 on our page.

3. How to find GCD of 145, 568, 972, 639 on a calculator?

You can find the GCD of 145, 568, 972, 639 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.