Code point
U+1D4B3
Glyph appearance depends on your fonts.
U+1D4B3
Lu<font> 0058U+1D4B3 MATHEMATICAL SCRIPT CAPITAL X is a Unicode 16.0.0 character in the Uppercase Letter category. It belongs to the Mathematical Alphanumeric Symbols block.
Choose the representation you need, then copy its value.
U+1D4B3
119987
𝒳
𝒳
𝒳
F0 9D 92 B3
D835 DCB3
0001D4B3
%F0%9D%92%B3
\U0001D4B3
\u{1D4B3}
\uD835\uDCB3
\1D4B3