GCD of 815, 221, 821, 382 Calculator

Given Input numbers are 815, 221, 821, 382

In the factoring method, we have to find the divisors of all numbers

Divisors of 815 :

The positive integer divisors of 815 that completely divides 815 are.

1, 5, 163, 815

Divisors of 221 :

The positive integer divisors of 221 that completely divides 221 are.

1, 13, 17, 221

Divisors of 821 :

The positive integer divisors of 821 that completely divides 821 are.

1, 821

Divisors of 382 :

The positive integer divisors of 382 that completely divides 382 are.

1, 2, 191, 382

GCD of numbers is the greatest common divisor

So, the GCD (815, 221, 821, 382) = 1.

Given numbers are 815, 221, 821, 382

The list of prime factors of all numbers are

Prime factors of 815 are 5 x 163

Prime factors of 221 are 13 x 17

Prime factors of 821 are 821

Prime factors of 382 are 2 x 191

The above numbers do not have any common prime factor. So GCD is 1

Given numbers are 815, 221, 821, 382

GCD of 2 numbers formula is GCD(a, b) = ( a x b) / LCM(a, b)

Apply this formula for all numbers.

Step1:

LCM(815, 221) = 180115

GCD(815, 221) = ( 815 x 221 ) / 180115

= 815 / 221

= 815

Step2:

LCM(1, 821) = 821

GCD(1, 821) = ( 1 x 821 ) / 821

= 1 / 821

= 1

Step3:

LCM(1, 382) = 382

GCD(1, 382) = ( 1 x 382 ) / 382

= 1 / 382

= 1

So, Greatest Common Divisor of 815, 221, 821, 382 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 975, 220, 342, 120
• GCD of 616, 518, 529, 957
• GCD of 411, 255, 516, 563
• GCD of 446, 480, 712, 717
• GCD of 839, 638, 620, 163

Given numbers are 815, 221, 821, 382
The greatest common divisor of numbers 815, 221, 821, 382 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 815, 221, 821, 382 is 1.

1. What is the GCD of 815, 221, 821, 382?

GCD of given numbers 815, 221, 821, 382 is 1

2. How to calculate the greatest common divisor of 815, 221, 821, 382?

We can find the highest common divisor of 815, 221, 821, 382 easily using the prime factorization method. Just list the prime factors of all numbers and pick the highest common factor which is the GCD of 815, 221, 821, 382 i.e 1.

3. How can I use the GCD of 815, 221, 821, 382Calculator?

Out the numbers 815, 221, 821, 382 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.