GCD of 623, 639, 65, 356 Calculator

Given Input numbers are 623, 639, 65, 356

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

Divisors of 623

List of positive integer divisors of 623 that divides 623 without a remainder.

1, 7, 89, 623

Divisors of 639

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

1, 3, 9, 71, 213, 639

Divisors of 65

List of positive integer divisors of 65 that divides 65 without a remainder.

1, 5, 13, 65

Divisors of 356

List of positive integer divisors of 356 that divides 356 without a remainder.

1, 2, 4, 89, 178, 356

Greatest Common Divisior

We found the divisors of 623, 639, 65, 356 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 623, 639, 65, 356 is 1.

Therefore, GCD of numbers 623, 639, 65, 356 is 1

Given Input Data is 623, 639, 65, 356

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

Prime Factorization of 623 is 7 x 89

Prime Factorization of 639 is 3 x 3 x 71

Prime Factorization of 65 is 5 x 13

Prime Factorization of 356 is 2 x 2 x 89

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(623, 639) = 398097

GCD(623, 639) = ( 623 x 639 ) / 398097

GCD(623, 639) = 398097 / 398097

GCD(623, 639) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 65

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

LCM(1, 65) = 65

GCD(1, 65) = ( 1 x 65 ) / 65

GCD(1, 65) = 65 / 65

GCD(1, 65) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 356

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

LCM(1, 356) = 356

GCD(1, 356) = ( 1 x 356 ) / 356

GCD(1, 356) = 356 / 356

GCD(1, 356) = 1

GCD of 623, 639, 65, 356 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 587, 953, 43, 921
• GCD of 968, 814, 29, 321
• GCD of 353, 702, 31, 660
• GCD of 425, 227, 62, 779
• GCD of 363, 564, 65, 961

1. What is the GCD of 623, 639, 65, 356?

GCD of 623, 639, 65, 356 is 1

2. Where do I get the detailed procedure to find GCD of 623, 639, 65, 356?

You can find a detailed procedure to find GCD of 623, 639, 65, 356 on our page.

3. How to find GCD of 623, 639, 65, 356 on a calculator?

You can find the GCD of 623, 639, 65, 356 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.