1718
1718 is the year Blackbeard was killed.
- Even
- Composite
Where 1718 fits
Why 1718 is special
His entire career as a pirate lasted about two years. The golden age of piracy was similarly short — roughly a decade — and its cultural footprint is enormously out of proportion to it.
1718 is part of
Factors & digit properties
- Divisors (4)
- 1, 2, 859, 1718
- Prime factorisation
- 2 × 859
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 1718
- Scientific notation
- 1.718 × 10^3
Roman numerals
M D C C X V I I I
Binary
1 1 0 1 0 1 1 0 1 1 0
1 × 1,024 + 1 × 512 + 0 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,718
Octal
3 2 6 6
3 × 512 + 2 × 64 + 6 × 8 + 6 × 1 = 1,718
Hexadecimal
6 b 6
6 × 256 + b × 16 + 6 × 1 = 1,718
Read as powers of two: 1,024 + 512 + 128 + 32 + 16 + 4 + 2 = 1,718.
In historical numeral systems
Egyptian
1 lotus, 7 coils of rope, 1 hobble, 8 strokes
1 × 1,000 + 7 × 100 + 1 × 10 + 8 × 1 = 1,718. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 8 vertical wedges (sixties place), 3 corner wedges + 8 vertical wedges (units place)
28 × 60 + 38 = 1718. Places are separated by a space on the tablet, with the higher place written first.
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
1718 is a year in the 18th century, in the 1710s.
Blackbeard was killed in 1718 after about two years as a pirate. The golden age of piracy lasted roughly a decade and its cultural footprint is enormously out of proportion to that.
View 1729 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- is associated with1729
why?
Strength 0.50, confidence "high".
History
In 1718, New Orleans was founded by the French on the lower Mississippi (North America).
DocumentedHistoryGeography: North AmericaPeriod: 1718Blackbeard was active for around two years before being killed in 1718. Almost every visual convention of piracy in fiction derives from a period of about a decade, which is a striking ratio of myth to history.
DocumentedHistoryGeography: North American coastPeriod: 1718
Common questions
Is 1718 a prime number?
No, 1718 is not prime.
What are the factors of 1718?
The factors of 1718 are 1, 2, 859, 1718.
What is 1718 in Roman numerals?
1718 in Roman numerals is MDCCXVIII.
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