Is 340 a prime number? What are the divisors of 340?

## Parity of 340

340 is an even number, because it is evenly divisible by 2: 340 / 2 = 170.

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## Is 340 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 340 is about 18.439.

Thus, the square root of 340 is not an integer, and therefore 340 is not a square number.

## What is the square number of 340?

The square of a number (here 340) is the result of the product of this number (340) by itself (i.e., 340 × 340); the square of 340 is sometimes called "raising 340 to the power 2", or "340 squared".

The square of 340 is 115 600 because 340 × 340 = 3402 = 115 600.

As a consequence, 340 is the square root of 115 600.

## Number of digits of 340

340 is a number with 3 digits.

## What are the multiples of 340?

The multiples of 340 are all integers evenly divisible by 340, that is all numbers such that the remainder of the division by 340 is zero. There are infinitely many multiples of 340. The smallest multiples of 340 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 340). 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 18.439). 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 340

• Preceding numbers: …338, 339
• Following numbers: 341, 342

### Nearest numbers from 340

• Preceding prime number: 337
• Following prime number: 347
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