## Is 2019 a prime number?

No, 2019 is not a prime number.

For example, 2019 can be divided by 3: 2019 / 3 = 673.

To be 2019 a prime number, it would have been required that 2019 has only two divisors, i.e., itself and 1.

## Parity of 2019

2019 is an odd number, because it is not evenly divisible by 2.

## Is 2019 a perfect square number?

A number is a perfect square (or a square number) if its square root is an integer; that is to say, it is the product of an integer with itself. Here, the square root of 2019 is about 44.933.

Thus, the square root of 2019 is not an integer, and therefore 2019 is not a square number.

## What is the square number of 2019?

The square of a number (here 2019) is the result of the product of this number (2019) by itself (i.e., 2019 × 2019); the square of 2019 is sometimes called "raising 2019 to the power 2", or "2019 squared".

The square of 2019 is 4 076 361 because 2019 × 2019 = 2019^{2} = 4 076 361.

As a consequence, 2019 is the square root of 4 076 361.

## Number of digits of 2019

2019 is a number with 4 digits.

## What are the multiples of 2019?

The multiples of 2019 are all integers evenly divisible by 2019, that is all numbers such that the remainder of the division by 2019 is zero. There are infinitely many multiples of 2019. The smallest multiples of 2019 are:

- 0: indeed, 0 is divisible by any natural number, and it is thus a multiple of 2019 too, since 0 × 2019 = 0
- 2019: indeed, 2019 is a multiple of itself, since 2019 is evenly divisible by 2019 (we have 2019 / 2019 = 1, so the remainder of this division is indeed zero)
- 4 038: indeed, 4 038 = 2019 × 2
- 6 057: indeed, 6 057 = 2019 × 3
- 8 076: indeed, 8 076 = 2019 × 4
- 10 095: indeed, 10 095 = 2019 × 5
- etc.