Prime Symbol
The prime symbol ′ (U+2032) is commonly used to denote a derivative, minutes, or a “first” mark in text.
U+2032
The symbol ′ is called the prime. It has a Unicode code point of U+2032, so it can be copied reliably across platforms. Below you’ll find practical uses, examples, and copy-friendly formats.
Prime Symbol Meaning
The prime symbol ′ (Unicode U+2032) is used as a small marking symbol. In technical and academic writing, it often indicates a derivative or a “first” variant (for example, f′ for a related function). In time and measurement contexts, it can represent minutes (′) in formats that use the prime for minutes and double prime (″) for seconds. In typography and editing, it may also be used as a quick mark to distinguish related items or as a “marked” notation in text. Its meaning depends on the surrounding context, so it’s best to use it where prime notation is already expected.
Common uses
- •Denoting derivatives in math and science notation (for example, f′(x))
- •Writing minutes in time/measurement shorthand (for example, 30′)
- •Labeling first/variant versions in technical documents (for example, Plan A′)
- •Marking edited or referenced text in drafts and annotations
- •Using as a typographic “prime” mark in specialized writing systems or style guides
Examples
′ Prime (U+2032) symbol
- ′f′(x) = 3x²
- ′The value is 30′ past the hour.
- ′We compare A′ to the original design.
- ′Refer to item 1′ in the appendix.
- ′Let g′(t) be the rate function.
Variations
Ready to copy
Technical codes
| Unicode | U+2032 | |
| HTML Entity | ′ | |
| HTML Code | ′ | |
| CSS | \2032 | |
| Alt Code | Alt + 8242 | |
| Decimal | 8242 |
How to type Prime Symbol (′)
On Windows
Hold Alt and type 8242 on the numeric keypad. In Word, type 2032 then press Alt + X.
On Mac
Switch to the Unicode Hex Input keyboard, then hold Option and type 2032. Or press Control + Command + Space and search.
On Linux
Press Control + Shift + U, type 2032, then press Enter or Space.
Anywhere
Copy ′ with the button above and paste it wherever you need it — this works on every device and in every app, with no keyboard shortcut to remember.
FAQ
What does the Prime symbol mean?
The prime symbol ′ (Unicode U+2032) is used as a small marking symbol. In technical and academic writing, it often indicates a derivative or a “first” variant (for example, f′ for a related function). In time and measurement contexts, it can represent minutes (′) in formats that use the prime for minutes and double prime (″) for seconds. In typography and editing, it may also be used as a quick mark to distinguish related items or as a “marked” notation in text. Its meaning depends on the surrounding context, so it’s best to use it where prime notation is already expected.
What is the Unicode code point for ′?
The prime symbol ′ has Unicode code point U+2032.
How do I insert ′ using HTML?
Use the HTML entity ′.
What is the JavaScript escape for ′?
In JavaScript, you can use \\u{2032}.
Is ′ the same as an apostrophe?
No. An apostrophe is a different character. ′ is specifically the prime symbol (U+2032) and is used for different notation depending on context.