1085
1085 is the year the Domesday survey was commissioned.
- Odd
- Composite
Where 1085 fits
Why 1085 is special
It recorded landholding across England in a single year with a thoroughness contemporaries found alarming. The name reflects that there was no appeal against its findings.
1085 connects to:
- historical years — appears in
Same number, different meanings
How 1085 is understood across different contexts — never implying one meaning because of another.
- Mathematics
It recorded landholding across England in a single year with a thoroughness contemporaries found alarming. The name reflects that there was no appeal against its findings.
- History
In 1085, Alfonso VI captured Toledo, whose libraries became the route by which Greek and Arabic learning reached Latin Europe (Iberia).
- Science
The melting point of copper is 1085 degrees Celsius (worldwide, at standard pressure). Bronze melts several hundred degrees below the copper it is mostly made of, which is why alloying came before the ability to melt the pure metal.
- Law & regulation
The Domesday Book was called that because its verdicts were final, like the Last Judgement. It remains a usable legal record and has been cited in modern property disputes.
1085 is part of
Factors & digit properties
- Divisors (8)
- 1, 5, 7, 31, 35, 155, 217, 1085
- Prime factorisation
- 5 × 7 × 31
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 1085
- Scientific notation
- 1.085 × 10^3
Roman numerals
M L X X X V
Binary
1 0 0 0 0 1 1 1 1 0 1
1 × 1,024 + 0 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 1,085
Octal
2 0 7 5
2 × 512 + 0 × 64 + 7 × 8 + 5 × 1 = 1,085
Hexadecimal
4 3 d
4 × 256 + 3 × 16 + d × 1 = 1,085
Read as powers of two: 1,024 + 32 + 16 + 8 + 4 + 1 = 1,085.
In historical numeral systems
Egyptian
1 lotus, 8 hobbles, 5 strokes
1 × 1,000 + 8 × 10 + 5 × 1 = 1,085. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 8 vertical wedges (sixties place), 5 vertical wedges (units place)
18 × 60 + 5 = 1085. 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
Related numbers & connections
1085 is a year in the 11th century, in the 1080s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1085, Alfonso VI captured Toledo, whose libraries became the route by which Greek and Arabic learning reached Latin Europe (Iberia).
DocumentedHistoryGeography: IberiaPeriod: 1085
Science
The melting point of copper is 1085 degrees Celsius (worldwide, at standard pressure). Bronze melts several hundred degrees below the copper it is mostly made of, which is why alloying came before the ability to melt the pure metal.
DocumentedScienceGeography: worldwide, at standard pressure
Law & regulation
The Domesday Book was called that because its verdicts were final, like the Last Judgement. It remains a usable legal record and has been cited in modern property disputes.
DocumentedLaw & regulationGeography: EnglandPeriod: 1085–1086
Common questions
Is 1085 a prime number?
No, 1085 is not prime.
What are the factors of 1085?
The factors of 1085 are 1, 5, 7, 31, 35, 155, 217, 1085.
What is 1085 in Roman numerals?
1085 in Roman numerals is MLXXXV.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 3 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026