Prime symbols are units of measurements used to measure length and angle in mathematics. However, many people use prime symbols as punctuation symbols instead of apostrophe and quotation marks which is incorrect. Though there are no keys available to type prime symbols, you can type different prime symbols using alt code shortcuts in Windows and Mac.

## Alt Codes for Prime Symbols

Below are the keyboard shortcuts for typing prime symbols in Windows and Mac.

Symbol | Name | Windows Code | Mac Code |
---|---|---|---|

′ | Prime | Alt + 8242 | 2032 Alt + X |

ʹ | Modifier Letter Prime | Alt + 697 | 02B9 Alt + X |

″ | Double Prime | Alt + 8243 | 2033 Alt + X |

ʺ | Modifier Letter Double Prime | Alt + 698 | 02BA Alt + X |

〞 | Double Prime Quotation Mark | Alt + 12318 | 301E Alt + X |

‴ | Triple Prime | Alt + 8244 | 2034 Alt + X |

‵ | Reversed Prime | Alt + 8245 | 2035 Alt + X |

‶ | Reversed Double Prime | Alt + 8246 | 2036 Alt + X |

〝 | Reversed Double Prime Quotation Mark | Alt + 12317 | 301D Alt + X |

‷ | Reversed Triple Prime | Alt + 8247 | 2037 Alt + X |

⁗ | Quadruple Prime | Alt + 8279 | 2057 Alt + X |

〟 | Low Double Prime Quotation Mark | Alt + 12319 | 301F Alt + X |

### How to Type Prime Symbols?

**1. Type prime symbols in Windows 10**

You can use the alt code shortcuts in Windows laptop and desktop computers having a separate number pad on the keyboard. First, turn on the numeric lock on your keyboard. Hold the alt key and type the numbers from the number pad. For example, `alt + 8242`

will make single prime symbol.

**2. How to typing prime symbols in Mac?**

On Mac, you can type prime symbols using option key. First, change the input method to Unicode Hex Input. Press the option key and type the hexadecimal code. For example, `option + 2036`

will make reversed double prime symbol.

**3. How to make prime symbols in HTML and CSS?**

Single and double prime symbols have HTML entity name as &prime ; and &Prime ; respectively (use without space). It is also easy to insert other prime symbols in web documents like HTML and CSS. On HTML documents, use the decimal code in the format `′`

or hexadecimal code in the format `′`

. If you want to insert in CSS, use the hexadecimal code in the format /2057.

## Prime as Unit of Measurements

There are two different ways of using prime symbols in units. One is to measure length and other is to measure angle.

Prime Symbol | Length | Angle |
---|---|---|

Single prime | Feet | Arcminutes (1/60 of degree) |

Double prime | Inches | Arcseconds (1/60 of arcminute) |

Trippe prime | Ligne | Thirds (1/60 of arcsecond) |

Quadruple prime | Fourths (1/60 of third of arc) |

Sometime, single prime ′ is used to indicate minutes and double prime ″ is used to indicate seconds.

### HTML Code Example

Below are the examples of using the symbols in HTML paragraph and span elements.

```
<span>′</span>
<span>″</span>
<p>‴</p>
<p>⁗</p>
```

### CSS Code Example

Below is the code example to use the symbols in CSS.

```
li:before {
content:\301F;
font-family:Arial;
}
```

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