GCD of 865, 813, 442, 221 Calculator

Given Input numbers are 865, 813, 442, 221

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

Divisors of 865 :

The positive integer divisors of 865 that completely divides 865 are.

1, 5, 173, 865

Divisors of 813 :

The positive integer divisors of 813 that completely divides 813 are.

1, 3, 271, 813

Divisors of 442 :

The positive integer divisors of 442 that completely divides 442 are.

1, 2, 13, 17, 26, 34, 221, 442

Divisors of 221 :

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

1, 13, 17, 221

GCD of numbers is the greatest common divisor

So, the GCD (865, 813, 442, 221) = 1.

Given numbers are 865, 813, 442, 221

The list of prime factors of all numbers are

Prime factors of 865 are 5 x 173

Prime factors of 813 are 3 x 271

Prime factors of 442 are 2 x 13 x 17

Prime factors of 221 are 13 x 17

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

Given numbers are 865, 813, 442, 221

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

Apply this formula for all numbers.

Step1:

LCM(865, 813) = 703245

GCD(865, 813) = ( 865 x 813 ) / 703245

= 865 / 813

= 865

Step2:

LCM(1, 442) = 442

GCD(1, 442) = ( 1 x 442 ) / 442

= 1 / 442

= 1

Step3:

LCM(1, 221) = 221

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

= 1 / 221

= 1

So, Greatest Common Divisor of 865, 813, 442, 221 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 796, 544, 579, 136
• GCD of 155, 449, 257, 955
• GCD of 451, 831, 543, 712
• GCD of 242, 348, 316, 759
• GCD of 290, 746, 725, 913

Given numbers are 865, 813, 442, 221
The greatest common divisor of numbers 865, 813, 442, 221 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 865, 813, 442, 221 is 1.

1. What is the GCD of 865, 813, 442, 221?

GCD of given numbers 865, 813, 442, 221 is 1

2. How to calculate the greatest common divisor of 865, 813, 442, 221?

We can find the highest common divisor of 865, 813, 442, 221 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 865, 813, 442, 221 i.e 1.

3. How can I use the GCD of 865, 813, 442, 221Calculator?

Out the numbers 865, 813, 442, 221 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.