HTML Entity for Quadruple Prime (⁗)
What You'll Learn
How to display the quadruple prime symbol (⁗) in HTML using various entity methods. This punctuation mark represents four stacked primes—commonly used for the fourth derivative in mathematics (e.g. f⁗(x)).
This character is part of the General Punctuation Unicode block and can be rendered with a hexadecimal reference, a decimal reference, the named entity ⁗, or a CSS escape in the content property. Do not confuse ⁗ with typing four separate prime marks ′′′′ or with U+2033 (″, double prime).
⚡ Quick Reference — Quadruple Prime
U+2057General Punctuation block
⁗Hexadecimal reference
⁗Decimal reference
⁗Most readable option
Name Value
──────────── ──────────
Unicode U+2057
Hex code ⁗
HTML code ⁗
Named entity ⁗
CSS code \2057
Meaning Quadruple prime (four primes)
Related U+2032 = Prime (′)
U+2033 = Double prime (″)
Block General Punctuation (U+2000–U+206F)Complete HTML Example
A simple example showing ⁗ using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:
<!DOCTYPE html>
<html>
<head>
<style>
#point::after{
content: "\2057";
}
</style>
</head>
<body>
<p>Derivative (hex): f⁗(x)</p>
<p>Derivative (decimal): f⁗(x)</p>
<p>Derivative (named): f⁗(x)</p>
<p>Derivative (CSS): f<span id="point"></span>(x)</p>
</body>
</html>🌐 Browser Support
The quadruple prime entity is universally supported in all modern browsers:
👀 Live Preview
See ⁗ rendered live in different contexts:
🧠 How It Works
Hexadecimal Code
⁗ uses the Unicode hexadecimal value 2057 to display the quadruple prime symbol.
Decimal HTML Code
⁗ uses the decimal Unicode value 8279 to display the same character.
CSS Entity
\2057 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.
Named Entity
⁗ is the semantic named entity — the easiest to read in source HTML for quadruple prime.
Same visual result
All four methods produce: ⁗. Unicode U+2057 in the General Punctuation block (U+2000–U+206F).
Use Cases
The quadruple prime symbol (⁗) commonly appears in:
Fourth derivative notation: f⁗(x).
Physics and engineering texts using higher-order derivatives.
Compact four-prime mark instead of four separate ′ characters.
Calculus courses teaching derivative notation in HTML.
Character pickers and General Punctuation documentation.
Online calculators and math notation tools.
Pair ⁗ with “fourth derivative” in alt text where helpful.
💡 Best Practices
Do
- Use
⁗for readable quadruple-prime markup - Distinguish ⁗ from ′ (prime) and ″ (double prime)
- Pick one style (hex / decimal / named) per project
- Use MathML or LaTeX for complex formulas when appropriate
- Test rendering across browsers and math fonts
Don’t
- Substitute four ′ characters when a single ⁗ (⁗) is intended
- Confuse ⁗ with ″ (double prime for inches/seconds)
- Use the placeholder
&xxx;from outdated references—use⁗ - Use CSS escape
\2057inside HTML text nodes - Use HTML entities in JS (use
\u2057instead)
Key Takeaways
Three HTML references all render ⁗
⁗ ⁗ ⁗For CSS stylesheets, use the escape in the content property
\2057Unicode U+2057 belongs to the General Punctuation block (U+2000–U+206F)
Prefer ⁗ for readability—standard named entity for quadruple prime
Previous: Qp Digraph (ȹ) Next: Quarter Note (♩)
❓ Frequently Asked Questions
⁗ (hex), ⁗ (decimal), ⁗ (named), or \2057 in CSS content. All produce ⁗.U+2057 (QUADRUPLE PRIME). General Punctuation block. Hex 2057, decimal 8279.′) is one prime. ″ (U+2033, ″) is two. ⁗ (U+2057, ⁗) is a single composite glyph for four primes.⁗, ⁗, and ⁗ are equivalent in modern browsers and all render ⁗.Explore More HTML Entities!
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