1100
1100 is the year of the Charter of Liberties.
- Even
- Composite
Where 1100 fits
Why 1100 is special
Henry I issued a written promise limiting royal power over the church and nobility. Magna Carta 115 years later was explicitly modelled on it, which makes 1215 less of a novelty than usually presented.
Same number, different meanings
How 1100 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Henry I issued a written promise limiting royal power over the church and nobility. Magna Carta 115 years later was explicitly modelled on it, which makes 1215 less of a novelty than usually presented.
- Technology & computing
1100 is commercially pure aluminium, at least 99 percent, with low strength and excellent formability and conductivity. It is used for chemical equipment, heat exchangers and foil.
- Law & regulation
The 1100 Charter of Liberties bound the king by written undertaking. Magna Carta's drafters used it as a template, so the constitutional tradition usually dated to 1215 has an earlier and largely forgotten precedent.
Factors & digit properties
- Divisors (18)
- 1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100
- Prime factorisation
- 2^2 × 5^2 × 11
- Digit sum
- 2
- Digital root
- 2
Representations
- Decimal
- 1100
- Binary
- 10001001100
- Octal
- 2114
- Hexadecimal
- 44c
- Roman numeral
- MC
- Scientific notation
- 1.100 × 10^3
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
Manganese raises strength slightly over commercially pure aluminium while keeping the formability that matters.
View 3003 →Technology & computing
1100 is commercially pure aluminium, at least 99 percent, with low strength and excellent formability and conductivity. It is used for chemical equipment, heat exchangers and foil.
DocumentedTechnology & computingGeography: International — Aluminium Association designations
Law & regulation
The 1100 Charter of Liberties bound the king by written undertaking. Magna Carta's drafters used it as a template, so the constitutional tradition usually dated to 1215 has an earlier and largely forgotten precedent.
DocumentedLaw & regulationGeography: EnglandPeriod: 1100
Common questions
Is 1100 a prime number?
No, 1100 is not prime.
What are the factors of 1100?
The factors of 1100 are 1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100.
What is 1100 in Roman numerals?
1100 in Roman numerals is MC.
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: 3 August 2026