Is 943 a prime number? What are the divisors of 943?

## Parity of 943

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

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## Is 943 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 943 is about 30.708.

Thus, the square root of 943 is not an integer, and therefore 943 is not a square number.

## What is the square number of 943?

The square of a number (here 943) is the result of the product of this number (943) by itself (i.e., 943 × 943); the square of 943 is sometimes called "raising 943 to the power 2", or "943 squared".

The square of 943 is 889 249 because 943 × 943 = 9432 = 889 249.

As a consequence, 943 is the square root of 889 249.

## Number of digits of 943

943 is a number with 3 digits.

## What are the multiples of 943?

The multiples of 943 are all integers evenly divisible by 943, that is all numbers such that the remainder of the division by 943 is zero. There are infinitely many multiples of 943. The smallest multiples of 943 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 943). 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 30.708). 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 943

• Preceding numbers: …941, 942
• Following numbers: 944, 945

### Nearest numbers from 943

• Preceding prime number: 941
• Following prime number: 947
Find out whether some integer is a prime number