Numberwise

88

88 is the atomic number of radium, discovered by Marie and Pierre Curie in 1898, and the number of keys on a standard piano.

2 confirmed records · 1 sourceChecked, general knowledgeHow we qualify claimsReport a correction

Where 88 fits

Where 88 fits: Mathematics, Science, Related numbersMathematics: Palindromic number, Repdigit. Science: IAU-recognised constellations. Related numbers: 44.MathematicsPalindromic numberRepdigitScienceIAU-recognised constellatio…Related numbers4488
88 connects to 3 worlds: mathematics, science, related numbers.

Why 88 is special

88 connects two very different domains: the radioactive element that helped launch nuclear science, and the 52-white/36-black key layout every modern piano shares.

88 connects to:

  • 44 — has factor
  • iau constellations — is associated with

Same number, different meanings

How 88 is understood across different contexts — never implying one meaning because of another.

88 is part of

Repeating / palindromic numbersNumbers around us

Factors & digit properties

Divisors (8)
1, 2, 4, 8, 11, 22, 44, 88
Prime factorisation
2^3 × 11
Digit sum
16
Digital root
7

Representations

Decimal
88
Binary
1011000
Octal
130
Hexadecimal
58
Roman numeral
LXXXVIII
Scientific notation
8.800 × 10^1

Other mathematical patterns

Related numbers & connections

Mathematical relationship
44 is a factor of 88 (44 × 2 = 88).

44 is a factor of 88 (44 × 2 = 88).

View 44 →
Connection
88 is the number of constellations officially recognised by the International Astronomical Union.

88 is the number of constellations officially recognised by the International Astronomical Union.

Mathematically related

  • has factor44
    why?

    Strength 0.50, confidence "high".

Other connections

  • is associated withIAU-recognised constellations
    why?

    Strength 0.50, confidence "high".

How is 88 connected to another number? →

Science

  • 88 is the atomic number of radium, discovered by Marie and Pierre Curie in 1898.

    DocumentedSciencePeriod: 1898

Media & popular culture

  • A standard modern piano keyboard has 88 keys — 52 white and 36 black.

    DocumentedMedia & popular culture

Common questions

Is 88 a prime number?

No, 88 is not prime.

What are the factors of 88?

The factors of 88 are 1, 2, 4, 8, 11, 22, 44, 88.

What is 88 in Roman numerals?

88 in Roman numerals is LXXXVIII.

About this page's data

Mathematical facts:computed directly from the number's value — nothing to source or verify externally.

Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.

Last reviewed: 15 July 2026