Is 920 a prime number? What are the divisors of 920?

## Parity of 920

920 is an even number, because it is evenly divisible by 2: 920 / 2 = 460.

Find out more:

## Is 920 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 920 is about 30.332.

Thus, the square root of 920 is not an integer, and therefore 920 is not a square number.

## What is the square number of 920?

The square of a number (here 920) is the result of the product of this number (920) by itself (i.e., 920 × 920); the square of 920 is sometimes called "raising 920 to the power 2", or "920 squared".

The square of 920 is 846 400 because 920 × 920 = 9202 = 846 400.

As a consequence, 920 is the square root of 846 400.

## Number of digits of 920

920 is a number with 3 digits.

## What are the multiples of 920?

The multiples of 920 are all integers evenly divisible by 920, that is all numbers such that the remainder of the division by 920 is zero. There are infinitely many multiples of 920. The smallest multiples of 920 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 920). 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 30.332). 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 920

• Preceding numbers: …918, 919
• Following numbers: 921, 922

### Nearest numbers from 920

• Preceding prime number: 919
• Following prime number: 929
Find out whether some integer is a prime number