The n-ary product ∏ means "multiply all of these together", the multiplicative counterpart of the summation sign. Type 220F then Alt+X in Word. It is a separate character from Greek capital pi, and typeset mathematics expects the operator rather than the letter.
01 All shortcuts at a glance
| Platform | Shortcut | |
|---|---|---|
| Windows (any app) | Win+. or Win+; emoji/symbol picker, or Character Map (Win+R → charmap) |
|
| Mac | Control+Command+Space to open Character Viewer, search "N-Ary Product" |
|
| Word / Outlook | Type 220F, then press Alt+X |
|
| Linux (IBus) | Ctrl+Shift+U, then 220f, then Enter |
|
| HTML / CSS | ∏ · \220f (CSS) |
02 Step by step, per platform
A real, followable procedure for every platform, not a thin restatement of the shortcut.
Windows
- Open Character Map: Win+R, type charmap, press Enter.
- Search or scroll for N-Ary Product (U+220F).
- Select it, click Copy, then paste where you need it.
Mac
- Press Control+Command+Space to open the Character Viewer.
- Type "N-Ary Product" in the search field.
- Double-click the result to insert it.
Microsoft Word
- Type 220F.
- Press Alt+X immediately after, it converts the hex code to ∏.
03 Characters in this set
04 Troubleshooting & confusables
| Looks like it | But it's actually | When to use |
|---|---|---|
| Π (U+03A0) | Greek capital pi | For a Greek letter or a named constant, not for a product operator. |
| ∑ (U+2211) | N-ary summation | For adding a sequence rather than multiplying it. |
| TT typed together | Two Latin letters | Never. The real operator is taller and spaced as a large operator. |
05 FAQ
What is the Unicode code point for the product symbol?
It is U+220F, decimal 8719. The Greek capital pi is a separate character at U+03A0.
How do I read a product notation?
The index below gives the starting value, the limit above gives the end, and the expression after is multiplied for each value. So the product from i equals 1 to n of i is n factorial.
Should I use ∏ or Π?
Use ∏ at U+220F. It is drawn taller, carries large-operator spacing, and means the operation rather than the letter.
What is an empty product?
A product over no terms equals 1, by the same convention that makes an empty sum equal 0. It keeps recursive definitions working at their base case.
How do I write it in LaTeX?
Use prod with subscript and superscript for the limits. In display mode the limits sit above and below, which is the conventional layout.