GCD of 247, 353, 272, 390 Calculator

Given Input numbers are 247, 353, 272, 390

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

Divisors of 247 :

The positive integer divisors of 247 that completely divides 247 are.

1, 13, 19, 247

Divisors of 353 :

The positive integer divisors of 353 that completely divides 353 are.

1, 353

Divisors of 272 :

The positive integer divisors of 272 that completely divides 272 are.

1, 2, 4, 8, 16, 17, 34, 68, 136, 272

Divisors of 390 :

The positive integer divisors of 390 that completely divides 390 are.

1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390

GCD of numbers is the greatest common divisor

So, the GCD (247, 353, 272, 390) = 1.

Given numbers are 247, 353, 272, 390

The list of prime factors of all numbers are

Prime factors of 247 are 13 x 19

Prime factors of 353 are 353

Prime factors of 272 are 2 x 2 x 2 x 2 x 17

Prime factors of 390 are 2 x 3 x 5 x 13

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

Given numbers are 247, 353, 272, 390

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

Apply this formula for all numbers.

Step1:

LCM(247, 353) = 87191

GCD(247, 353) = ( 247 x 353 ) / 87191

= 247 / 353

= 247

Step2:

LCM(1, 272) = 272

GCD(1, 272) = ( 1 x 272 ) / 272

= 1 / 272

= 1

Step3:

LCM(1, 390) = 390

GCD(1, 390) = ( 1 x 390 ) / 390

= 1 / 390

= 1

So, Greatest Common Divisor of 247, 353, 272, 390 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 979, 911, 715, 955
• GCD of 477, 302, 309, 632
• GCD of 200, 518, 112, 175
• GCD of 147, 262, 163, 989
• GCD of 363, 103, 773, 611

Given numbers are 247, 353, 272, 390
The greatest common divisor of numbers 247, 353, 272, 390 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 247, 353, 272, 390 is 1.

1. What is the GCD of 247, 353, 272, 390?

GCD of given numbers 247, 353, 272, 390 is 1

2. How to calculate the greatest common divisor of 247, 353, 272, 390?

We can find the highest common divisor of 247, 353, 272, 390 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 247, 353, 272, 390 i.e 1.

3. How can I use the GCD of 247, 353, 272, 390Calculator?

Out the numbers 247, 353, 272, 390 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.