What 𝐍 means
It is a mathematical letter, but not a fixed label.
Boldface can distinguish a quantity from plain N or mark an object such as a vector; it does not settle N’s meaning. Mathematician Richard Dedekind used N for naturals in 1888; Peano followed in 1889. In 1895, Peano used N for positive integers and N₀ for those plus zero. A 1999 proposal by STIX, a project involving scientific publishers, gives the reason: math styles can carry distinct meanings, so plain text must preserve them.
Part of the collection
Don't confuse it with
1
Questions people ask
1Does NFKC change bold N?
Yes. NFKC is Unicode’s compatibility normalization: it turns 𝐍 into plain N and drops the bold distinction.
More like this
11
How to type or find 𝐍
- Search it as
- bold capital n · boldface n · mathbf n · natural numbers n · n vector
- Shows up in
- Anything that takes text · its shape is whatever your font draws
Windows (Word)
Windows
HTML
𝐍CSS
\1D40DCodes and encoding1 code points
HTML decimal
𝐍
HTML hex
𝐍
CSS content
content: "\1D40D";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9D%90%8D
1
On screen
1
Code points
2
JS .length
4
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.