### The Number

# 3

## Three

## In Base 31 Untrigesimal Is

# 331

The numbers with a 31 subscript use Base 31 Untrigesimal notation.

For more familiar numbers: See Three 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.*

`3e0`

## Reciprocal

*A number multiplied with its reciprocal is one.*

`0.aaaaaaaaaa931`

The reciprocal of 3 in Base 31 Untrigesimal.

## Palindrome?

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

The number 331 is a palindrome.

## A Prime Number

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

Three is the 2nd prime number. See primes in Base 31 Untrigesimal

## Not A Composite

*Composites have more than just these two factors.*

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

## Prime Factors

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

The number three 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*

###
```
3311
= 331
```

## Base Conversions

*The number three in 35 different bases*