Is 328 a prime number? What are the divisors of 328?

## Parity of 328

328 is an even number, because it is evenly divisible by 2: 328 / 2 = 164.

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## Is 328 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 328 is about 18.111.

Thus, the square root of 328 is not an integer, and therefore 328 is not a square number.

## What is the square number of 328?

The square of a number (here 328) is the result of the product of this number (328) by itself (i.e., 328 × 328); the square of 328 is sometimes called "raising 328 to the power 2", or "328 squared".

The square of 328 is 107 584 because 328 × 328 = 3282 = 107 584.

As a consequence, 328 is the square root of 107 584.

## Number of digits of 328

328 is a number with 3 digits.

## What are the multiples of 328?

The multiples of 328 are all integers evenly divisible by 328, that is all numbers such that the remainder of the division by 328 is zero. There are infinitely many multiples of 328. The smallest multiples of 328 are:

## How to determine whether an integer is a prime number?

To determine the primality of a number, several algorithms can be used. The most naive technique is to test all divisors strictly smaller to the number of which we want to determine the primality (here 328). First, we can eliminate all even numbers greater than 2 (and hence 4, 6, 8…). Then, we can stop this check when we reach the square root of the number of which we want to determine the primality (here the square root is about 18.111). Historically, the sieve of Eratosthenes (dating from the Greek mathematics) implements this technique in a relatively efficient manner.

More modern techniques include the sieve of Atkin, probabilistic algorithms, and the cyclotomic AKS test.

## Numbers near 328

• Preceding numbers: …326, 327
• Following numbers: 329, 330

### Nearest numbers from 328

• Preceding prime number: 317
• Following prime number: 331
Find out whether some integer is a prime number