GCD of 391, 556, 992, 720 Calculator

Given Input numbers are 391, 556, 992, 720

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

Divisors of 391 :

The positive integer divisors of 391 that completely divides 391 are.

1, 17, 23, 391

Divisors of 556 :

The positive integer divisors of 556 that completely divides 556 are.

1, 2, 4, 139, 278, 556

Divisors of 992 :

The positive integer divisors of 992 that completely divides 992 are.

1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992

Divisors of 720 :

The positive integer divisors of 720 that completely divides 720 are.

1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720

GCD of numbers is the greatest common divisor

So, the GCD (391, 556, 992, 720) = 1.

Given numbers are 391, 556, 992, 720

The list of prime factors of all numbers are

Prime factors of 391 are 17 x 23

Prime factors of 556 are 2 x 2 x 139

Prime factors of 992 are 2 x 2 x 2 x 2 x 2 x 31

Prime factors of 720 are 2 x 2 x 2 x 2 x 3 x 3 x 5

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

Given numbers are 391, 556, 992, 720

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

Apply this formula for all numbers.

Step1:

LCM(391, 556) = 217396

GCD(391, 556) = ( 391 x 556 ) / 217396

= 391 / 556

= 391

Step2:

LCM(1, 992) = 992

GCD(1, 992) = ( 1 x 992 ) / 992

= 1 / 992

= 1

Step3:

LCM(1, 720) = 720

GCD(1, 720) = ( 1 x 720 ) / 720

= 1 / 720

= 1

So, Greatest Common Divisor of 391, 556, 992, 720 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 688, 433, 534, 281
• GCD of 461, 735, 340, 859
• GCD of 272, 589, 502, 350
• GCD of 322, 180, 493, 641
• GCD of 425, 279, 175, 354

Given numbers are 391, 556, 992, 720
The greatest common divisor of numbers 391, 556, 992, 720 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 391, 556, 992, 720 is 1.

1. What is the GCD of 391, 556, 992, 720?

GCD of given numbers 391, 556, 992, 720 is 1

2. How to calculate the greatest common divisor of 391, 556, 992, 720?

We can find the highest common divisor of 391, 556, 992, 720 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 391, 556, 992, 720 i.e 1.

3. How can I use the GCD of 391, 556, 992, 720Calculator?

Out the numbers 391, 556, 992, 720 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.