# Divisors of 842

## Divisors of 842

The list of all positive divisors (that is, the list of all integers that divide 22) is as follows :

Accordingly:

842 is multiplo of 1

842 is multiplo of 2

842 is multiplo of 421

842 has 3 positive divisors

## Parity of 842

In addition we can say of the number 842 that it is even

842 is an even number, as it is divisible by 2 : 842/2 = 421

## The factors for 842

The factors for 842 are all the numbers between -842 and 842 , which divide 842 without leaving any remainder. Since 842 divided by -842 is an integer, -842 is a factor of 842 .

Since 842 divided by -842 is a whole number, -842 is a factor of 842

Since 842 divided by -421 is a whole number, -421 is a factor of 842

Since 842 divided by -2 is a whole number, -2 is a factor of 842

Since 842 divided by -1 is a whole number, -1 is a factor of 842

Since 842 divided by 1 is a whole number, 1 is a factor of 842

Since 842 divided by 2 is a whole number, 2 is a factor of 842

Since 842 divided by 421 is a whole number, 421 is a factor of 842

## What are the multiples of 842?

Multiples of 842 are all integers divisible by 842 , i.e. the remainder of the full division by 842 is zero. There are infinite multiples of 842. The smallest multiples of 842 are:

0 : in fact, 0 is divisible by any integer, so it is also a multiple of 842 since 0 × 842 = 0

842 : in fact, 842 is a multiple of itself, since 842 is divisible by 842 (it was 842 / 842 = 1, so the rest of this division is zero)

1684: in fact, 1684 = 842 × 2

2526: in fact, 2526 = 842 × 3

3368: in fact, 3368 = 842 × 4

4210: in fact, 4210 = 842 × 5

etc.

## Is 842 a prime number?

It is possible to determine using mathematical techniques whether an integer is prime or not.

for 842, the answer is: No, 842 is not a prime number.

## How do you determine if a number is prime?

To know the primality of an integer, we can use several algorithms. The most naive is to try all divisors below the number you want to know if it is prime (in our case 842). We can already eliminate even numbers bigger than 2 (then 4 , 6 , 8 ...). Besides, we can stop at the square root of the number in question (here 29.017 ). Historically, the Eratosthenes screen (which dates back to Antiquity) uses this technique relatively effectively.

More modern techniques include the Atkin screen, probabilistic tests, or the cyclotomic test.