GCD of 807, 247, 157, 221 Calculator

Given Input numbers are 807, 247, 157, 221

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

Divisors of 807

List of positive integer divisors of 807 that divides 807 without a remainder.

1, 3, 269, 807

Divisors of 247

List of positive integer divisors of 247 that divides 247 without a remainder.

1, 13, 19, 247

Divisors of 157

List of positive integer divisors of 157 that divides 157 without a remainder.

1, 157

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 807, 247, 157, 221 . The biggest common divisior number is the GCD number.
So the Greatest Common Divisior 807, 247, 157, 221 is 1.

Therefore, GCD of numbers 807, 247, 157, 221 is 1

Given Input Data is 807, 247, 157, 221

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

Prime Factorization of 807 is 3 x 269

Prime Factorization of 247 is 13 x 19

Prime Factorization of 157 is 157

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(807, 247) = 199329

GCD(807, 247) = ( 807 x 247 ) / 199329

GCD(807, 247) = 199329 / 199329

GCD(807, 247) = 1

Step2:

Here we consider the GCD from the above i.e. 1 as first number and the next as 157

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

LCM(1, 157) = 157

GCD(1, 157) = ( 1 x 157 ) / 157

GCD(1, 157) = 157 / 157

GCD(1, 157) = 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 807, 247, 157, 221 is 1

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1. What is the GCD of 807, 247, 157, 221?

GCD of 807, 247, 157, 221 is 1

2. Where do I get the detailed procedure to find GCD of 807, 247, 157, 221?

You can find a detailed procedure to find GCD of 807, 247, 157, 221 on our page.

3. How to find GCD of 807, 247, 157, 221 on a calculator?

You can find the GCD of 807, 247, 157, 221 by simply giving the inputs separated by commas and click on the calculate button to avail the Greatest Common Divisor in less time.