### The Number

# 5

## Five

## In Base 18 Octodecimal Is

# 518

The numbers with a 18 subscript use Base 18 Octodecimal notation.

For more familiar numbers: See Five in Base 10 Decimal

## Nearby Numbers

*Positive, nonzero integers within three units*

## Scientific Notation

*Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.*

`5e0`

## Reciprocal

*A number multiplied with its reciprocal is one.*

`0.3ae73ae73ae73c18`

The reciprocal of 5 in Base 18 Octodecimal.

## Palindrome?

*A numerical palindrome has the same value when all of its digits are reversed.*

The number 518 is a palindrome.

## A Prime Number

*A prime number is a positive integer that is divisible only by itself and one.*

Five is the 3rd prime number. See primes in Base 18 Octodecimal

## Not A Composite

*Composites have more than just these two factors.*

Five is not a composite number because it has exactly two factors: One and Five

## Prime Factors

*The prime factors of a positive integer are the integers that divide it exactly and are also prime.*

The number five has the following 1 prime factor:

## Prime Factorization

*The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities*

###
```
5181
= 518
```

## Base Conversions

*The number five in 35 different bases*