GCD of 781, 355, 956, 720 Calculator

Given Input numbers are 781, 355, 956, 720

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 355 :

The positive integer divisors of 355 that completely divides 355 are.

1, 5, 71, 355

Divisors of 956 :

The positive integer divisors of 956 that completely divides 956 are.

1, 2, 4, 239, 478, 956

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 (781, 355, 956, 720) = 1.

Given numbers are 781, 355, 956, 720

The list of prime factors of all numbers are

Prime factors of 781 are 11 x 71

Prime factors of 355 are 5 x 71

Prime factors of 956 are 2 x 2 x 239

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 781, 355, 956, 720

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

Apply this formula for all numbers.

Step1:

LCM(781, 355) = 3905

GCD(781, 355) = ( 781 x 355 ) / 3905

= 781 / 355

= 781

Step2:

LCM(71, 956) = 67876

GCD(71, 956) = ( 71 x 956 ) / 67876

= 71 / 956

= 71

Step3:

LCM(1, 720) = 720

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

= 1 / 720

= 1

So, Greatest Common Divisor of 781, 355, 956, 720 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 586, 878, 342, 267
• GCD of 133, 812, 793, 688
• GCD of 823, 503, 583, 787
• GCD of 260, 748, 501, 805
• GCD of 313, 336, 740, 215

Given numbers are 781, 355, 956, 720
The greatest common divisor of numbers 781, 355, 956, 720 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 781, 355, 956, 720 is 1.

1. What is the GCD of 781, 355, 956, 720?

GCD of given numbers 781, 355, 956, 720 is 1

2. How to calculate the greatest common divisor of 781, 355, 956, 720?

We can find the highest common divisor of 781, 355, 956, 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 781, 355, 956, 720 i.e 1.

3. How can I use the GCD of 781, 355, 956, 720Calculator?

Out the numbers 781, 355, 956, 720 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.