Is 318 a prime number? What are the divisors of 318?

## Parity of 318

318 is an even number, because it is evenly divisible by 2: 318 / 2 = 159.

Find out more:

## Is 318 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 318 is about 17.833.

Thus, the square root of 318 is not an integer, and therefore 318 is not a square number.

## What is the square number of 318?

The square of a number (here 318) is the result of the product of this number (318) by itself (i.e., 318 × 318); the square of 318 is sometimes called "raising 318 to the power 2", or "318 squared".

The square of 318 is 101 124 because 318 × 318 = 3182 = 101 124.

As a consequence, 318 is the square root of 101 124.

## Number of digits of 318

318 is a number with 3 digits.

## What are the multiples of 318?

The multiples of 318 are all integers evenly divisible by 318, that is all numbers such that the remainder of the division by 318 is zero. There are infinitely many multiples of 318. The smallest multiples of 318 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 318). 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 17.833). 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 318

• Preceding numbers: …316, 317
• Following numbers: 319, 320

### Nearest numbers from 318

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