# Divisors of 169

## Divisors of 169

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

Accordingly:

169 is multiplo of 1

169 is multiplo of 13

169 has 2 positive divisors

## Parity of 169

169is an odd number,as it is not divisible by 2

## The factors for 169

The factors for 169 are all the numbers between -169 and 169 , which divide 169 without leaving any remainder. Since 169 divided by -169 is an integer, -169 is a factor of 169 .

Since 169 divided by -169 is a whole number, -169 is a factor of 169

Since 169 divided by -13 is a whole number, -13 is a factor of 169

Since 169 divided by -1 is a whole number, -1 is a factor of 169

Since 169 divided by 1 is a whole number, 1 is a factor of 169

Since 169 divided by 13 is a whole number, 13 is a factor of 169

## What are the multiples of 169?

Multiples of 169 are all integers divisible by 169 , i.e. the remainder of the full division by 169 is zero. There are infinite multiples of 169. The smallest multiples of 169 are:

0 : in fact, 0 is divisible by any integer, so it is also a multiple of 169 since 0 × 169 = 0

169 : in fact, 169 is a multiple of itself, since 169 is divisible by 169 (it was 169 / 169 = 1, so the rest of this division is zero)

338: in fact, 338 = 169 × 2

507: in fact, 507 = 169 × 3

676: in fact, 676 = 169 × 4

845: in fact, 845 = 169 × 5

etc.

## Is 169 a prime number?

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

for 169, the answer is: No, 169 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 169). 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 13 ). 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.