988
988 is the conventional year the Kievan Rus adopted Christianity.
- Even
- Composite
Why 988 is special
Vladimir's choice of Byzantine Christianity over Islam, Judaism and Latin Christianity shaped the religious and political orientation of Russia, Ukraine and Belarus permanently.
Factors & digit properties
- Divisors (12)
- 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
- Prime factorisation
- 2^2 × 13 × 19
- Digit sum
- 25
- Digital root
- 7
Representations
- Decimal
- 988
- Binary
- 1111011100
- Octal
- 1734
- Hexadecimal
- 3dc
- Roman numeral
- CMLXXXVIII
- Scientific notation
- 9.880 × 10^2
Other mathematical patterns
- Deficient number
Religion & belief
The Rus adopted Byzantine rather than Latin Christianity around 988, which set the alphabet, liturgy and political orientation of eastern Slavic states. The chronicle's account of how the choice was made is legendary.
DocumentedReligion & beliefGeography: Kievan RusPeriod: 988
Common questions
Is 988 a prime number?
No, 988 is not prime.
What are the factors of 988?
The factors of 988 are 1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988.
What is 988 in Roman numerals?
988 in Roman numerals is CMLXXXVIII.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026