GCD of 918, 620, 63, 221 Calculator

Given Input numbers are 918, 620, 63, 221

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

Divisors of 918

List of positive integer divisors of 918 that divides 918 without a remainder.

1, 2, 3, 6, 9, 17, 18, 27, 34, 51, 54, 102, 153, 306, 459, 918

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 63

List of positive integer divisors of 63 that divides 63 without a remainder.

1, 3, 7, 9, 21, 63

Divisors of 221

List of positive integer divisors of 221 that divides 221 without a remainder.

1, 13, 17, 221

Greatest Common Divisior

We found the divisors of 918, 620, 63, 221 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 918, 620, 63, 221 is 1.

Therefore, GCD of numbers 918, 620, 63, 221 is 1

Given Input Data is 918, 620, 63, 221

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

Prime Factorization of 918 is 2 x 3 x 3 x 3 x 17

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

Prime Factorization of 63 is 3 x 3 x 7

Prime Factorization of 221 is 13 x 17

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(918, 620) = 284580

GCD(918, 620) = ( 918 x 620 ) / 284580

GCD(918, 620) = 569160 / 284580

GCD(918, 620) = 2

Step2:

Here we consider the GCD from the above i.e. 2 as first number and the next as 63

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

LCM(2, 63) = 126

GCD(2, 63) = ( 2 x 63 ) / 126

GCD(2, 63) = 126 / 126

GCD(2, 63) = 1

Step3:

Here we consider the GCD from the above i.e. 1 as first number and the next as 221

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

LCM(1, 221) = 221

GCD(1, 221) = ( 1 x 221 ) / 221

GCD(1, 221) = 221 / 221

GCD(1, 221) = 1

GCD of 918, 620, 63, 221 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 588, 346, 53, 257
• GCD of 749, 336, 95, 682
• GCD of 698, 463, 48, 128
• GCD of 499, 565, 52, 238
• GCD of 458, 790, 13, 832

1. What is the GCD of 918, 620, 63, 221?

GCD of 918, 620, 63, 221 is 1

2. Where do I get the detailed procedure to find GCD of 918, 620, 63, 221?

You can find a detailed procedure to find GCD of 918, 620, 63, 221 on our page.

3. How to find GCD of 918, 620, 63, 221 on a calculator?

You can find the GCD of 918, 620, 63, 221 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.