# Divisors of 1998

## Divisors of 1998

The list of all positive divisors (that is, the list of all integers that divide 22) is as follows :

Accordingly:

1998 is multiplo of 1

1998 is multiplo of 2

1998 is multiplo of 3

1998 is multiplo of 6

1998 is multiplo of 9

1998 is multiplo of 18

1998 is multiplo of 27

1998 is multiplo of 37

1998 is multiplo of 54

1998 is multiplo of 74

1998 is multiplo of 111

1998 is multiplo of 222

1998 is multiplo of 333

1998 is multiplo of 666

1998 is multiplo of 999

1998 has 15 positive divisors

## Parity of 1998

In addition we can say of the number 1998 that it is even

1998 is an even number, as it is divisible by 2 : 1998/2 = 999

## The factors for 1998

The factors for 1998 are all the numbers between -1998 and 1998 , which divide 1998 without leaving any remainder. Since 1998 divided by -1998 is an integer, -1998 is a factor of 1998 .

Since 1998 divided by -1998 is a whole number, -1998 is a factor of 1998

Since 1998 divided by -999 is a whole number, -999 is a factor of 1998

Since 1998 divided by -666 is a whole number, -666 is a factor of 1998

Since 1998 divided by -333 is a whole number, -333 is a factor of 1998

Since 1998 divided by -222 is a whole number, -222 is a factor of 1998

Since 1998 divided by -111 is a whole number, -111 is a factor of 1998

Since 1998 divided by -74 is a whole number, -74 is a factor of 1998

Since 1998 divided by -54 is a whole number, -54 is a factor of 1998

Since 1998 divided by -37 is a whole number, -37 is a factor of 1998

Since 1998 divided by -27 is a whole number, -27 is a factor of 1998

Since 1998 divided by -18 is a whole number, -18 is a factor of 1998

Since 1998 divided by -9 is a whole number, -9 is a factor of 1998

Since 1998 divided by -6 is a whole number, -6 is a factor of 1998

Since 1998 divided by -3 is a whole number, -3 is a factor of 1998

Since 1998 divided by -2 is a whole number, -2 is a factor of 1998

Since 1998 divided by -1 is a whole number, -1 is a factor of 1998

Since 1998 divided by 1 is a whole number, 1 is a factor of 1998

Since 1998 divided by 2 is a whole number, 2 is a factor of 1998

Since 1998 divided by 3 is a whole number, 3 is a factor of 1998

Since 1998 divided by 6 is a whole number, 6 is a factor of 1998

Since 1998 divided by 9 is a whole number, 9 is a factor of 1998

Since 1998 divided by 18 is a whole number, 18 is a factor of 1998

Since 1998 divided by 27 is a whole number, 27 is a factor of 1998

Since 1998 divided by 37 is a whole number, 37 is a factor of 1998

Since 1998 divided by 54 is a whole number, 54 is a factor of 1998

Since 1998 divided by 74 is a whole number, 74 is a factor of 1998

Since 1998 divided by 111 is a whole number, 111 is a factor of 1998

Since 1998 divided by 222 is a whole number, 222 is a factor of 1998

Since 1998 divided by 333 is a whole number, 333 is a factor of 1998

Since 1998 divided by 666 is a whole number, 666 is a factor of 1998

Since 1998 divided by 999 is a whole number, 999 is a factor of 1998

## What are the multiples of 1998?

Multiples of 1998 are all integers divisible by 1998 , i.e. the remainder of the full division by 1998 is zero. There are infinite multiples of 1998. The smallest multiples of 1998 are:

0 : in fact, 0 is divisible by any integer, so it is also a multiple of 1998 since 0 × 1998 = 0

1998 : in fact, 1998 is a multiple of itself, since 1998 is divisible by 1998 (it was 1998 / 1998 = 1, so the rest of this division is zero)

3996: in fact, 3996 = 1998 × 2

5994: in fact, 5994 = 1998 × 3

7992: in fact, 7992 = 1998 × 4

9990: in fact, 9990 = 1998 × 5

etc.

## Is 1998 a prime number?

It is possible to determine using mathematical techniques whether an integer is prime or not.

for 1998, the answer is: No, 1998 is not a prime number.

## How do you determine if a number is prime?

To know the primality of an integer, we can use several algorithms. The most naive is to try all divisors below the number you want to know if it is prime (in our case 1998). We can already eliminate even numbers bigger than 2 (then 4 , 6 , 8 ...). Besides, we can stop at the square root of the number in question (here 44.699 ). Historically, the Eratosthenes screen (which dates back to Antiquity) uses this technique relatively effectively.

More modern techniques include the Atkin screen, probabilistic tests, or the cyclotomic test.