GCD of 981, 397, 784, 678 Calculator

Given Input numbers are 981, 397, 784, 678

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

Divisors of 981 :

The positive integer divisors of 981 that completely divides 981 are.

1, 3, 9, 109, 327, 981

Divisors of 397 :

The positive integer divisors of 397 that completely divides 397 are.

1, 397

Divisors of 784 :

The positive integer divisors of 784 that completely divides 784 are.

1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784

Divisors of 678 :

The positive integer divisors of 678 that completely divides 678 are.

1, 2, 3, 6, 113, 226, 339, 678

GCD of numbers is the greatest common divisor

So, the GCD (981, 397, 784, 678) = 1.

Given numbers are 981, 397, 784, 678

The list of prime factors of all numbers are

Prime factors of 981 are 3 x 3 x 109

Prime factors of 397 are 397

Prime factors of 784 are 2 x 2 x 2 x 2 x 7 x 7

Prime factors of 678 are 2 x 3 x 113

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

Given numbers are 981, 397, 784, 678

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

Apply this formula for all numbers.

Step1:

LCM(981, 397) = 389457

GCD(981, 397) = ( 981 x 397 ) / 389457

= 981 / 397

= 981

Step2:

LCM(1, 784) = 784

GCD(1, 784) = ( 1 x 784 ) / 784

= 1 / 784

= 1

Step3:

LCM(1, 678) = 678

GCD(1, 678) = ( 1 x 678 ) / 678

= 1 / 678

= 1

So, Greatest Common Divisor of 981, 397, 784, 678 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 448, 272, 791, 206
• GCD of 905, 601, 933, 798
• GCD of 375, 558, 773, 377
• GCD of 443, 488, 691, 824
• GCD of 578, 909, 547, 890

Given numbers are 981, 397, 784, 678
The greatest common divisor of numbers 981, 397, 784, 678 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 981, 397, 784, 678 is 1.

1. What is the GCD of 981, 397, 784, 678?

GCD of given numbers 981, 397, 784, 678 is 1

2. How to calculate the greatest common divisor of 981, 397, 784, 678?

We can find the highest common divisor of 981, 397, 784, 678 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 981, 397, 784, 678 i.e 1.

3. How can I use the GCD of 981, 397, 784, 678Calculator?

Out the numbers 981, 397, 784, 678 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.