GCD of 646, 383, 890, 990 Calculator

Given Input numbers are 646, 383, 890, 990

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

Divisors of 646 :

The positive integer divisors of 646 that completely divides 646 are.

1, 2, 17, 19, 34, 38, 323, 646

Divisors of 383 :

The positive integer divisors of 383 that completely divides 383 are.

1, 383

Divisors of 890 :

The positive integer divisors of 890 that completely divides 890 are.

1, 2, 5, 10, 89, 178, 445, 890

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 (646, 383, 890, 990) = 1.

Given numbers are 646, 383, 890, 990

The list of prime factors of all numbers are

Prime factors of 646 are 2 x 17 x 19

Prime factors of 383 are 383

Prime factors of 890 are 2 x 5 x 89

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 646, 383, 890, 990

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

Apply this formula for all numbers.

Step1:

LCM(646, 383) = 247418

GCD(646, 383) = ( 646 x 383 ) / 247418

= 646 / 383

= 646

Step2:

LCM(1, 890) = 890

GCD(1, 890) = ( 1 x 890 ) / 890

= 1 / 890

= 1

Step3:

LCM(1, 990) = 990

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

= 1 / 990

= 1

So, Greatest Common Divisor of 646, 383, 890, 990 is 1

Here are some samples of GCD of Numbers calculations.

• GCD of 403, 488, 687, 759
• GCD of 906, 746, 433, 843
• GCD of 932, 285, 704, 870
• GCD of 486, 938, 687, 804
• GCD of 533, 335, 116, 194

Given numbers are 646, 383, 890, 990
The greatest common divisor of numbers 646, 383, 890, 990 can be found in various methods such as the LCM formula, factoring, and prime factorization. The GCD of numbers 646, 383, 890, 990 is 1.

1. What is the GCD of 646, 383, 890, 990?

GCD of given numbers 646, 383, 890, 990 is 1

2. How to calculate the greatest common divisor of 646, 383, 890, 990?

We can find the highest common divisor of 646, 383, 890, 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 646, 383, 890, 990 i.e 1.

3. How can I use the GCD of 646, 383, 890, 990Calculator?

Out the numbers 646, 383, 890, 990 into the GCD calculator and hit the calculate button to get the greatest common divisor as result.