# Numeric Quantifiers

Say, we’ve got to find a 3-digit number. With `\d` that’s simple:

```showMatch( "I'm 100 years old", /\d\d\d/ )  // 100
```

But let’s go a step further. What if we want to search for 5-digit numbers. Should we repeat `\d` 5 times: `\d\d\d\d\d`?

Luckily, there is a better way.

Character count can be specified using `{n}` syntax. So, `\d{5}` means 5 digits, same as `\d\d\d\d\d`.

The example below finds a 5-digit number.

```showMatch( "I'm 12345 years old", /\d{5}/ )  //  "12345"
```

To find 3-5 digit numbers, specify two numbers in figure brackets: `\d{3,5}`

```showMatch( "I'm 1234 years old", /\d{3,5}/ )  // "1234"
```

It is possible to omit the last number. So, a number with 3 or more digits will be `\d{3,}`:

```showMatch( "I'm 12345678 years old", /\d{3,}/ ) // "12345678"
```

Write a regexp to find a CSS-color, which starts with `'#'` and contains exactly 6 hexadimal chars (only this kind of colors in this task).

```var re = /*...your global regexp...*/

var subj = "color: #121212; background-color: #AA00ef \
width: 12px; bad-colors: f#fddee #fd2 "

```

Open solution
Solution

The color should Write a regexp to describe a web-color, which starts with # followed by 6 hexadimal chars.

A hexadimal character is `[0-9a-fA-F]`. Here we can use case-insensitive match and shorten the expression to `[0-9a-f]`.

To repeat it 6 times, use the quantifier `{6}`.

Finally, gives us `/#[a-f0-9]{6}/gi`.

```var re = /#[a-f0-9]{6}/gi

var subj = "color: #121212; background-color: #AA00ef \
width: 12px; bad-colors: f#fddee #fd2 "

```alert( "#12345678".match( /#[a-f0-9]{6}/gi ) ) // #12345678