GCD of 20, 620, 650, 263 Calculator

Given Input numbers are 20, 620, 650, 263

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

Divisors of 20

List of positive integer divisors of 20 that divides 20 without a remainder.

1, 2, 4, 5, 10, 20

Divisors of 620

List of positive integer divisors of 620 that divides 620 without a remainder.

1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620

Divisors of 650

List of positive integer divisors of 650 that divides 650 without a remainder.

1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650

Divisors of 263

List of positive integer divisors of 263 that divides 263 without a remainder.

1, 263

Greatest Common Divisior

We found the divisors of 20, 620, 650, 263 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 20, 620, 650, 263 is 1.

Therefore, GCD of numbers 20, 620, 650, 263 is 1

Given Input Data is 20, 620, 650, 263

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

Prime Factorization of 20 is 2 x 2 x 5

Prime Factorization of 620 is 2 x 2 x 5 x 31

Prime Factorization of 650 is 2 x 5 x 5 x 13

Prime Factorization of 263 is 263

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(20, 620) = 620

GCD(20, 620) = ( 20 x 620 ) / 620

GCD(20, 620) = 12400 / 620

GCD(20, 620) = 20

Step2:

Here we consider the GCD from the above i.e. 20 as first number and the next as 650

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

LCM(20, 650) = 1300

GCD(20, 650) = ( 20 x 650 ) / 1300

GCD(20, 650) = 13000 / 1300

GCD(20, 650) = 10

Step3:

Here we consider the GCD from the above i.e. 10 as first number and the next as 263

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

LCM(10, 263) = 2630

GCD(10, 263) = ( 10 x 263 ) / 2630

GCD(10, 263) = 2630 / 2630

GCD(10, 263) = 1

GCD of 20, 620, 650, 263 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 16, 955, 113, 965
• GCD of 71, 620, 103, 442
• GCD of 15, 275, 385, 208
• GCD of 62, 957, 105, 687
• GCD of 23, 557, 831, 491

1. What is the GCD of 20, 620, 650, 263?

GCD of 20, 620, 650, 263 is 1

2. Where do I get the detailed procedure to find GCD of 20, 620, 650, 263?

You can find a detailed procedure to find GCD of 20, 620, 650, 263 on our page.

3. How to find GCD of 20, 620, 650, 263 on a calculator?

You can find the GCD of 20, 620, 650, 263 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.