718
The Porsche 718 name was revived for the mid-engined cars.
- Even
- Composite
Where 718 fits
Why 718 is special
The original 718 was a 1950s racing car, and reusing its number for the Boxster and Cayman was a marketing decision rather than an engineering lineage.
Factors & digit properties
- Divisors (4)
- 1, 2, 359, 718
- Prime factorisation
- 2 × 359
- Digit sum
- 16
- Digital root
- 7
Representations
- Decimal
- 718
- Scientific notation
- 7.180 × 10^2
Roman numerals
D C C X V I I I
Binary
1 0 1 1 0 0 1 1 1 0
1 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 718
Octal
1 3 1 6
1 × 512 + 3 × 64 + 1 × 8 + 6 × 1 = 718
Hexadecimal
2 c e
2 × 256 + c × 16 + e × 1 = 718
Read as powers of two: 512 + 128 + 64 + 8 + 4 + 2 = 718.
In historical numeral systems
Egyptian
7 coils of rope, 1 hobble, 8 strokes
7 × 100 + 1 × 10 + 8 × 1 = 718. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 1 vertical wedge (sixties place), 5 corner wedges + 8 vertical wedges (units place)
11 × 60 + 58 = 718. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
psi, then iota, then eta, marked as a numeral
psi-iota-eta + keraia
psi + iota + eta 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 shin, then yod, then het
tav-shin-yod-het
tav (400) + shin (300) + yod (10) + het (8) = 718, 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
- Deficient number
- Semiprime
Related numbers & connections
Cast blades and forged discs are the two halves of a turbine stage, made from different superalloys for different loads.
View 738 →Technology & computing
Porsche applied the 718 designation to its four-cylinder mid-engined Boxster and Cayman from 2016, referencing the 718 racing cars of 1957 to 1962.
DocumentedTechnology & computingGeography: GermanyPeriod: 1957–1962; 2016–Alloy 718 is a precipitation-hardened nickel-chromium superalloy retaining strength to about 700 degrees Celsius. It is the most widely produced superalloy, used for turbine discs and rocket engine components.
DocumentedTechnology & computingGeography: International — UNS designations
Common questions
Is 718 a prime number?
No, 718 is not prime.
What are the factors of 718?
The factors of 718 are 1, 2, 359, 718.
What is 718 in Roman numerals?
718 in Roman numerals is DCCXVIII.
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