GCD of 781, 872, 390, 872 Calculator

Given Input numbers are 781, 872, 390, 872

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

Divisors of 781 :

The positive integer divisors of 781 that completely divides 781 are.

1, 11, 71, 781

Divisors of 872 :

The positive integer divisors of 872 that completely divides 872 are.

1, 2, 4, 8, 109, 218, 436, 872

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

Divisors of 872 :

The positive integer divisors of 872 that completely divides 872 are.

1, 2, 4, 8, 109, 218, 436, 872

GCD of numbers is the greatest common divisor

So, the GCD (781, 872, 390, 872) = 1.

Given numbers are 781, 872, 390, 872

The list of prime factors of all numbers are

Prime factors of 781 are 11 x 71

Prime factors of 872 are 2 x 2 x 2 x 109

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

Prime factors of 872 are 2 x 2 x 2 x 109

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

Given numbers are 781, 872, 390, 872

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

Apply this formula for all numbers.

Step1:

LCM(781, 872) = 681032

GCD(781, 872) = ( 781 x 872 ) / 681032

= 781 / 872

= 781

Step2:

LCM(1, 390) = 390

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

= 1 / 390

= 1

Step3:

LCM(1, 872) = 872

GCD(1, 872) = ( 1 x 872 ) / 872

= 1 / 872

= 1

So, Greatest Common Divisor of 781, 872, 390, 872 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 932, 614, 920, 976
• GCD of 975, 156, 587, 661
• GCD of 178, 704, 222, 202
• GCD of 313, 792, 587, 116
• GCD of 132, 584, 961, 373

Given numbers are 781, 872, 390, 872
The greatest common divisor of numbers 781, 872, 390, 872 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 781, 872, 390, 872 is 1.

1. What is the GCD of 781, 872, 390, 872?

GCD of given numbers 781, 872, 390, 872 is 1

2. How to calculate the greatest common divisor of 781, 872, 390, 872?

We can find the highest common divisor of 781, 872, 390, 872 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 781, 872, 390, 872 i.e 1.

3. How can I use the GCD of 781, 872, 390, 872Calculator?

Out the numbers 781, 872, 390, 872 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.