GCD of 385, 257, 813, 220 Calculator

Given Input numbers are 385, 257, 813, 220

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

Divisors of 385 :

The positive integer divisors of 385 that completely divides 385 are.

1, 5, 7, 11, 35, 55, 77, 385

Divisors of 257 :

The positive integer divisors of 257 that completely divides 257 are.

1, 257

Divisors of 813 :

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

1, 3, 271, 813

Divisors of 220 :

The positive integer divisors of 220 that completely divides 220 are.

1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220

GCD of numbers is the greatest common divisor

So, the GCD (385, 257, 813, 220) = 1.

Given numbers are 385, 257, 813, 220

The list of prime factors of all numbers are

Prime factors of 385 are 5 x 7 x 11

Prime factors of 257 are 257

Prime factors of 813 are 3 x 271

Prime factors of 220 are 2 x 2 x 5 x 11

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

Given numbers are 385, 257, 813, 220

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

Apply this formula for all numbers.

Step1:

LCM(385, 257) = 98945

GCD(385, 257) = ( 385 x 257 ) / 98945

= 385 / 257

= 385

Step2:

LCM(1, 813) = 813

GCD(1, 813) = ( 1 x 813 ) / 813

= 1 / 813

= 1

Step3:

LCM(1, 220) = 220

GCD(1, 220) = ( 1 x 220 ) / 220

= 1 / 220

= 1

So, Greatest Common Divisor of 385, 257, 813, 220 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 191, 168, 795, 834
• GCD of 685, 528, 447, 463
• GCD of 398, 806, 926, 203
• GCD of 532, 520, 921, 537
• GCD of 485, 870, 434, 796

Given numbers are 385, 257, 813, 220
The greatest common divisor of numbers 385, 257, 813, 220 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 385, 257, 813, 220 is 1.

1. What is the GCD of 385, 257, 813, 220?

GCD of given numbers 385, 257, 813, 220 is 1

2. How to calculate the greatest common divisor of 385, 257, 813, 220?

We can find the highest common divisor of 385, 257, 813, 220 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 385, 257, 813, 220 i.e 1.

3. How can I use the GCD of 385, 257, 813, 220Calculator?

Out the numbers 385, 257, 813, 220 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.