1180
1180 is roughly when the windmill appeared in Europe.
- Even
- Composite
Where 1180 fits
Why 1180 is special
Unlike a watermill it could be built anywhere with wind, which freed milling from river sites and from the landowners who controlled them. The economics of grinding grain changed as much as the engineering.
Factors & digit properties
- Divisors (12)
- 1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180
- Prime factorisation
- 2^2 × 5 × 59
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 1180
- Binary
- 10010011100
- Octal
- 2234
- Hexadecimal
- 49c
- Roman numeral
- MCLXXX
- Scientific notation
- 1.180 × 10^3
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
The horse collar from around 1050 let horses plough and the windmill from around 1180 freed milling from rivers. Both raised medieval agricultural output by removing a physical constraint.
View 1050 →Other connections
- developed from1050
why?
Strength 0.50, confidence "high".
Technology & computing
Watermills required a river and therefore a landowner's permission. Windmills could be built on any exposed ground, which broke a monopoly as much as it solved a technical problem.
DocumentedTechnology & computingGeography: EuropePeriod: around 1180
Common questions
Is 1180 a prime number?
No, 1180 is not prime.
What are the factors of 1180?
The factors of 1180 are 1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180.
What is 1180 in Roman numerals?
1180 in Roman numerals is MCLXXX.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 3 August 2026