U+1FBF1 "🯱" Segmented Digit One Unicode Character

Unicode Version 17.0

🯱

U+1FBF1 "🯱" Segmented Digit One is a numeric symbol representing the digit one within the "Segmented Digits" block, a set of characters intended for use in displays that mimic seven segment LEDs or similar segmented digital readouts. It appears as a stylized "1" formed typically by two vertical segments, lacking the top and bottom horizontal bars used in a full seven segment display for other digits. This character was added to Unicode in version 12.0 as part of an effort to provide precise digital representations for mathematical notation, clocks, calculators, or other contexts where segmented numeral styles are required. Its inclusion ensures that digital typography can accurately render the segmented appearance of numbers without relying on makeshift or inconsistent graphic elements.

General Properties

Code Point U+1FBF1
Version Added 13.0
Name Segmented Digit One
Block Symbols for Legacy Computing
General Category Decimal Number
Canonical Combining Class Not Reordered
Bidirectional Class European Number
Decomposition Type Font
Decomposition Mapping "1" U+0031 Digit One

Encodings

HTML Decimal Encoding 🯱
HTML Hex Encoding 🯱
UTF-8 Encoding 0xF0 0x9F 0xAF 0xB1
UTF-16 Encoding 0xD83E 0xDFF1
UTF-32 Encoding 0x0001FBF1
C/C++/Java Escape \ud83e\udff1

Unicode Properties

NFC Quick Check Yes
NFD Quick Check Yes
Numeric Type Decimal
Numeric Value 1
Line Break Numeric
Changes When NFKC Casefolded Yes
NFKC Casefold "1" U+0031 Digit One
NFKC Simple Casefold "1" U+0031 Digit One
Script Common
Script Extensions Common
Indic Syllabic Category Other
ID Continue Yes
XID Continue Yes
Vertical Orientation Rotated
Grapheme Base Yes
Grapheme Cluster Break Other
Word Break Numeric
Sentence Break Numeric