′
Prime
- Unicode
- U+2032
- Category
- Math
- HTML Entity
- ′
- CSS
- \2032
The prime symbol (′) is a typographical mark primarily used in math, science, and measurement. It commonly represents feet in imperial units, arcminutes in geometry, and the first derivative in calculus. While it looks extremely similar to an apostrophe or single quotation mark, the prime is a distinct, slightly angled character reserved for technical notations rather than standard punctuation.
How to Type
- Windows
- Alt+8242 or Win+. then search 'prime'
- macOS
- Control+Command+Space then search 'prime'
- Linux
- Ctrl+Shift+U then 2032
- HTML
- ′ or ′
In Programming
While rarely used in actual source code syntax (which prefers the standard ASCII single quote for strings and characters), the true prime symbol is heavily used in LaTeX and mathematical documentation to denote derivatives or transformed variables.
Tags
angle notation
arcminutes symbol
calculus prime
coordinate notation
derivative
feet
feet symbol
first derivative mark
imperial units
latitude minutes
mathematics
measurement superscript
minutes
prime mark
single prime