1823
1823 is the year of the Monroe Doctrine.
- Odd
- Prime
Where 1823 fits
Why 1823 is special
The United States declared the Americas closed to further European colonisation. It had no means of enforcing this and relied on the Royal Navy, whose interests happened to coincide.
1823 is part of
Factors & digit properties
- Divisors (2)
- 1, 1823
- Prime factorisation
- 1823
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 1823
- Binary
- 11100011111
- Octal
- 3437
- Hexadecimal
- 71f
- Roman numeral
- MDCCCXXIII
- Scientific notation
- 1.823 × 10^3
Other mathematical patterns
- Deficient number
- Safe prime
Related numbers & connections
The Monroe Doctrine of 1823 asserted a position the United States could not enforce, relying on the Royal Navy; the Entente of 1904 realigned Britain toward France. Both are cases of stated policy resting on someone else's power.
View 1904 →Other connections
- developed from1904
why?
Strength 0.50, confidence "high".
Law & regulation
The Monroe Doctrine asserted American opposition to European colonisation in 1823 while the United States lacked the naval power to prevent it. Britain enforced the practical effect because it suited British trade.
DocumentedLaw & regulationGeography: United States and the AmericasPeriod: 1823
Common questions
Is 1823 a prime number?
Yes, 1823 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 1823?
The factors of 1823 are 1, 1823.
What is 1823 in Roman numerals?
1823 in Roman numerals is MDCCCXXIII.
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