GCD of 128, 538, 787, 990 Calculator

Given Input numbers are 128, 538, 787, 990

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

Divisors of 128 :

The positive integer divisors of 128 that completely divides 128 are.

1, 2, 4, 8, 16, 32, 64, 128

Divisors of 538 :

The positive integer divisors of 538 that completely divides 538 are.

1, 2, 269, 538

Divisors of 787 :

The positive integer divisors of 787 that completely divides 787 are.

1, 787

Divisors of 990 :

The positive integer divisors of 990 that completely divides 990 are.

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

GCD of numbers is the greatest common divisor

So, the GCD (128, 538, 787, 990) = 1.

Given numbers are 128, 538, 787, 990

The list of prime factors of all numbers are

Prime factors of 128 are 2 x 2 x 2 x 2 x 2 x 2 x 2

Prime factors of 538 are 2 x 269

Prime factors of 787 are 787

Prime factors of 990 are 2 x 3 x 3 x 5 x 11

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

Given numbers are 128, 538, 787, 990

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

Apply this formula for all numbers.

Step1:

LCM(128, 538) = 34432

GCD(128, 538) = ( 128 x 538 ) / 34432

= 128 / 538

= 128

Step2:

LCM(2, 787) = 1574

GCD(2, 787) = ( 2 x 787 ) / 1574

= 2 / 787

= 2

Step3:

LCM(1, 990) = 990

GCD(1, 990) = ( 1 x 990 ) / 990

= 1 / 990

= 1

So, Greatest Common Divisor of 128, 538, 787, 990 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 966, 138, 701, 323
• GCD of 918, 609, 901, 521
• GCD of 266, 561, 162, 589
• GCD of 851, 768, 449, 396
• GCD of 438, 223, 522, 936

Given numbers are 128, 538, 787, 990
The greatest common divisor of numbers 128, 538, 787, 990 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 128, 538, 787, 990 is 1.

1. What is the GCD of 128, 538, 787, 990?

GCD of given numbers 128, 538, 787, 990 is 1

2. How to calculate the greatest common divisor of 128, 538, 787, 990?

We can find the highest common divisor of 128, 538, 787, 990 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 128, 538, 787, 990 i.e 1.

3. How can I use the GCD of 128, 538, 787, 990Calculator?

Out the numbers 128, 538, 787, 990 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.