GCD of 665, 860, 465, 221 Calculator

Given Input numbers are 665, 860, 465, 221

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

Divisors of 665

List of positive integer divisors of 665 that divides 665 without a remainder.

1, 5, 7, 19, 35, 95, 133, 665

Divisors of 860

List of positive integer divisors of 860 that divides 860 without a remainder.

1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860

Divisors of 465

List of positive integer divisors of 465 that divides 465 without a remainder.

1, 3, 5, 15, 31, 93, 155, 465

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 665, 860, 465, 221 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 665, 860, 465, 221 is 1.

Therefore, GCD of numbers 665, 860, 465, 221 is 1

Given Input Data is 665, 860, 465, 221

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

Prime Factorization of 665 is 5 x 7 x 19

Prime Factorization of 860 is 2 x 2 x 5 x 43

Prime Factorization of 465 is 3 x 5 x 31

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(665, 860) = 114380

GCD(665, 860) = ( 665 x 860 ) / 114380

GCD(665, 860) = 571900 / 114380

GCD(665, 860) = 5

Step2:

Here we consider the GCD from the above i.e. 5 as first number and the next as 465

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

LCM(5, 465) = 465

GCD(5, 465) = ( 5 x 465 ) / 465

GCD(5, 465) = 2325 / 465

GCD(5, 465) = 5

Step3:

Here we consider the GCD from the above i.e. 5 as first number and the next as 221

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

LCM(5, 221) = 1105

GCD(5, 221) = ( 5 x 221 ) / 1105

GCD(5, 221) = 1105 / 1105

GCD(5, 221) = 1

GCD of 665, 860, 465, 221 is 1

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1. What is the GCD of 665, 860, 465, 221?

GCD of 665, 860, 465, 221 is 1

2. Where do I get the detailed procedure to find GCD of 665, 860, 465, 221?

You can find a detailed procedure to find GCD of 665, 860, 465, 221 on our page.

3. How to find GCD of 665, 860, 465, 221 on a calculator?

You can find the GCD of 665, 860, 465, 221 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.