What is the difference between Mathematical Double-struck Digit Seven and Digit Seven?

Mathematical Double-struck Digit Seven is U+1D7DF in the Mathematical Alphanumeric Symbols block. Digit Seven is U+0037 in the Basic Latin block. They are distinct Unicode codepoints and may appear visually similar depending on the font.

What is the HTML entity for Mathematical Double-struck Digit Seven?

The HTML entity for Mathematical Double-struck Digit Seven (U+1D7DF) is 𝟟.

What is the HTML entity for Digit Seven?

The HTML entity for Digit Seven (U+0037) is 7.

Are Mathematical Double-struck Digit Seven and Digit Seven the same Unicode character?

No. Mathematical Double-struck Digit Seven is U+1D7DF (decimal 120799) and Digit Seven is U+0037 (decimal 55). They are separate codepoints.

What are the UTF-8 encodings of Mathematical Double-struck Digit Seven and Digit Seven?

Mathematical Double-struck Digit Seven (U+1D7DF) encodes as F0 9D 9F 9F in UTF-8. Digit Seven (U+0037) encodes as 37 in UTF-8.

Mathematical Double-struck Digit Seven vs Digit Seven

Compare two Unicode characters side by side — encodings, HTML entities, escape sequences, and Unicode properties. Useful for distinguishing visually similar characters like hyphens and dashes, quotation marks, or homoglyphs.

𝟟

Mathematical Double-struck Digit Seven

U+1D7DF

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Digit Seven

U+0037

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Property Comparison

Property	Mathematical Double-struck Digit Seven	Digit Seven
Codepoint	`U+1D7DF`	`U+0037`
Decimal	`120799`	`55`
HTML Entity	`𝟟`	`7`
HTML Decimal	`𝟟`	`7`
HTML Hex	`𝟟`	`7`
UTF-8	`F0 9D 9F 9F`	`37`
UTF-16	`D8 35 DF DF`	`00 37`
UTF-32	`0001D7DF`	`00000037`
CSS Escape	`\1D7DF`	`\37`
JS Escape	`\uD835\uDFDF`	`\u0037`
Python Escape	`\U0001D7DF`	`\u0037`
URL Encoded	`%F0%9D%9F%9F`	`7`
Category	`Decimal Number (Nd)`	`Decimal Number (Nd)`
Block	`Mathematical Alphanumeric Symbols`	`Basic Latin`
Script	`Common`	`Common`
Bidi Class	`EN`	`EN`
Unicode Version	`3.1`	`1.1`

Rows highlighted in amber differ between the two characters.

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