Is 844 a prime number? What are the divisors of 844?

## Parity of 844

844 is an even number, because it is evenly divisible by 2: 844 / 2 = 422.

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## Is 844 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 844 is about 29.052.

Thus, the square root of 844 is not an integer, and therefore 844 is not a square number.

## What is the square number of 844?

The square of a number (here 844) is the result of the product of this number (844) by itself (i.e., 844 × 844); the square of 844 is sometimes called "raising 844 to the power 2", or "844 squared".

The square of 844 is 712 336 because 844 × 844 = 8442 = 712 336.

As a consequence, 844 is the square root of 712 336.

## Number of digits of 844

844 is a number with 3 digits.

## What are the multiples of 844?

The multiples of 844 are all integers evenly divisible by 844, that is all numbers such that the remainder of the division by 844 is zero. There are infinitely many multiples of 844. The smallest multiples of 844 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 844). 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 29.052). 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 844

• Preceding numbers: …842, 843
• Following numbers: 845, 846

### Nearest numbers from 844

• Preceding prime number: 839
• Following prime number: 853
Find out whether some integer is a prime number