959
The Porsche 959 was a road car built to a rally specification that was cancelled.
- Odd
- Composite
Where 959 fits
Why 959 is special
Group B was abolished after fatal accidents before the car could compete, so a machine developed for one purpose became a technology demonstrator instead — introducing computer-controlled all-wheel drive to road cars.
959 is part of
Factors & digit properties
- Divisors (4)
- 1, 7, 137, 959
- Prime factorisation
- 7 × 137
- Digit sum
- 23
- Digital root
- 5
Representations
- Decimal
- 959
- Scientific notation
- 9.590 × 10^2
Roman numerals
C M L I X
CMLIX uses the subtractive pair IX: one before ten — ten minus one.
Binary
1 1 1 0 1 1 1 1 1 1
1 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 959
Octal
1 6 7 7
1 × 512 + 6 × 64 + 7 × 8 + 7 × 1 = 959
Hexadecimal
3 b f
3 × 256 + b × 16 + f × 1 = 959
Read as powers of two: 512 + 256 + 128 + 32 + 16 + 8 + 4 + 2 + 1 = 959.
In historical numeral systems
Egyptian
9 coils of rope, 5 hobbles, 9 strokes
9 × 100 + 5 × 10 + 9 × 1 = 959. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 5 vertical wedges (sixties place), 5 corner wedges + 9 vertical wedges (units place)
15 × 60 + 59 = 959. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
sampi, then nu, then theta, marked as a numeral
sampi-nu-theta + keraia
sampi + nu + theta written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
tav, then tav, then qof, then nun, then tet
tav-tav-qof-nun-tet
tav (400) + tav (400) + qof (100) + nun (50) + tet (9) = 959, written in descending order.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Palindromic number
- Deficient number
- Semiprime
Related numbers & connections
The 288 GTO and 959 were both built to homologate Group B entries, and the category was abolished before either raced. Two supercars exist because of a rule that stopped applying.
View 288 →Technology & computing
RFC 959 defines FTP, which opens a separate data connection for each transfer. That two-connection design is why FTP interacts poorly with firewalls and network address translation.
DocumentedTechnology & computingGeography: International — IETFPeriod: 1985The 959 was developed for Group B rallying, which was cancelled on safety grounds before it competed. Its adjustable computer-controlled all-wheel drive reached road cars anyway.
DocumentedTechnology & computingGeography: GermanyPeriod: 1986
Common questions
Is 959 a prime number?
No, 959 is not prime.
What are the factors of 959?
The factors of 959 are 1, 7, 137, 959.
What is 959 in Roman numerals?
959 in Roman numerals is CMLIX. IX is subtractive: one before ten — ten minus one. Written additively it would be DCCCCLVIIII, which Roman inscriptions used freely — the strict subtractive form is a later convention.
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