289
289 is the small-block Ford displacement.
Where 289 fits
Why 289 is special
It is the engine in the original Shelby Cobra and Mustang, and the small block's compact size is what made those cars possible.
289 is part of
Factors & digit properties
- Divisors (3)
- 1, 17, 289
- Prime factorisation
- 17^2
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 289
- Binary
- 100100001
- Octal
- 441
- Hexadecimal
- 121
- Roman numeral
- CCLXXXIX
- Scientific notation
- 2.890 × 10^2
Other mathematical patterns
- Deficient number
- Powerful number
- Semiprime
- Lucky number (mathematical sieve)
Related numbers & connections
The smallest and largest Ford V8 displacements of the era bracket what the same manufacturer built.
View 460 →Technology & computing
The Ford 289 cubic inch V8 powered early Mustangs and Shelby Cobras. Its light, compact construction relative to contemporary V8s was central to those applications.
DocumentedTechnology & computingGeography: United StatesPeriod: 1963–1968
Common questions
Is 289 a prime number?
No, 289 is not prime.
What are the factors of 289?
The factors of 289 are 1, 17, 289.
What is 289 in Roman numerals?
289 in Roman numerals is CCLXXXIX.
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