1333
CWE-1333 is inefficient regular expression complexity.
- Odd
- Composite
Where 1333 fits
Why 1333 is special
A pattern that backtracks exponentially turns a short input into minutes of processor time, which is a denial of service written accidentally.
Same number, different meanings
How 1333 is understood across different contexts — never implying one meaning because of another.
- Mathematics
A pattern that backtracks exponentially turns a short input into minutes of processor time, which is a denial of service written accidentally.
- History
In 1333, the Kamakura shogunate fell and imperial rule was briefly restored (Japan).
- Technology & computing
CWE-1333 covers regular expressions whose backtracking behaviour is exponential in input length. Modest crafted inputs can consume disproportionate processing time.
1333 is part of
Factors & digit properties
- Divisors (4)
- 1, 31, 43, 1333
- Prime factorisation
- 31 × 43
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 1333
- Scientific notation
- 1.333 × 10^3
Roman numerals
M C C C X X X I I I
Binary
1 0 1 0 0 1 1 0 1 0 1
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 1,333
Octal
2 4 6 5
2 × 512 + 4 × 64 + 6 × 8 + 5 × 1 = 1,333
Hexadecimal
5 3 5
5 × 256 + 3 × 16 + 5 × 1 = 1,333
Read as powers of two: 1,024 + 256 + 32 + 16 + 4 + 1 = 1,333.
In historical numeral systems
Egyptian
1 lotus, 3 coils of rope, 3 hobbles, 3 strokes
1 × 1,000 + 3 × 100 + 3 × 10 + 3 × 1 = 1,333. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 2 vertical wedges (sixties place), 1 corner wedge + 3 vertical wedges (units place)
22 × 60 + 13 = 1333. 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
- Happy number
- Semiprime
Related numbers & connections
1333 is a year in the 14th century, in the 1330s.
A pattern that backtracks exponentially is uncontrolled resource consumption written by accident.
View 400 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- is associated with400
why?
Strength 0.50, confidence "high".
History
In 1333, the Kamakura shogunate fell and imperial rule was briefly restored (Japan).
DocumentedHistoryGeography: JapanPeriod: 1333
Technology & computing
CWE-1333 covers regular expressions whose backtracking behaviour is exponential in input length. Modest crafted inputs can consume disproportionate processing time.
DocumentedTechnology & computingGeography: International — MITRE CWEPeriod: 2006–
Common questions
Is 1333 a prime number?
No, 1333 is not prime.
What are the factors of 1333?
The factors of 1333 are 1, 31, 43, 1333.
What is 1333 in Roman numerals?
1333 in Roman numerals is MCCCXXXIII.
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