U+1D7E0 "𝟠" Mathematical Double-Struck Digit Eight Unicode Character

U+1D7E0 "𝟠" Mathematical Double-Struck Digit Eight is a typographic variant of the standard digit "8" designed for use in mathematical and scientific notation. It belongs to the Mathematical Alphanumeric Symbols block, and its double struck style, often referred to as blackboard bold, is commonly used to represent specific number sets or abstract mathematical objects. This particular character is typically employed in contexts where a clear distinction is needed from ordinary text, such as denoting the dimension of a vector space or referencing a specific element within a number system.

General Properties

Code Point	U+1D7E0
Version Added	3.1
Name	Mathematical Double-Struck Digit Eight
Block	Mathematical Alphanumeric Symbols
General Category	Decimal Number
Canonical Combining Class	Not Reordered
Bidirectional Class	European Number
Decomposition Type	Font
Decomposition Mapping	"8" U+0038 Digit Eight

Encodings

HTML Decimal Encoding	𝟠
HTML Hex Encoding	𝟠
UTF-8 Encoding	0xF0 0x9D 0x9F 0xA0
UTF-16 Encoding	0xD835 0xDFE0
UTF-32 Encoding	0x0001D7E0
C/C++/Java Escape	\ud835\udfe0

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
Numeric Type	Decimal
Numeric Value	8
Line Break	Numeric
Changes When NFKC Casefolded	Yes
NFKC Casefold	"8" U+0038 Digit Eight
NFKC Simple Casefold	"8" U+0038 Digit Eight
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
ID Continue	Yes
XID Continue	Yes
Math	Yes
Other Math	Yes
Vertical Orientation	Rotated
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Numeric
Sentence Break	Numeric