Prime Symbol

A symbol from the Quote Symbols collection. Click the symbol or the button below to copy.

Symbol: ′
Unicode: U+2032
HTML entity: ′
Category: Quote Symbols

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15 of 24 in the quote symbols collection

About the prime symbol

The prime is a punctuation mark that resembles an apostrophe but is angled differently. It is primarily used in mathematics to denote derivatives, such as f′(x) for the derivative of a function, and in measurements to indicate feet or minutes of arc. In scientific and technical writing, double and triple primes represent seconds and thirds of arc, respectively.

The character belongs to the General Punctuation block and is categorized as a quote symbol on some reference sites, though its primary functions are mathematical and unit-related rather than quotation. It is distinct from both the apostrophe and the single quotation mark, which have different typographic shapes and purposes.

How to type Prime

Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.

Windows

2 options

In Word / Outlook: type 2032 then press Alt + X.
Anywhere: press Win + . to open the emoji & symbol picker, then search.

macOS

2 options

Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 2032.
Or: Control + Command + Space opens the Character Viewer — search by name.