1783
1783 is the year the American Revolutionary War formally ended.
- Odd
- Prime
Where 1783 fits
Why 1783 is special
The Treaty of Paris recognised American independence and set borders far larger than the thirteen colonies had claimed. Britain conceded territory it still occupied, largely because the war had become expensive and unpopular at home.
1783 is part of
Factors & digit properties
- Divisors (2)
- 1, 1783
- Prime factorisation
- 1783
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 1783
- Binary
- 11011110111
- Octal
- 3367
- Hexadecimal
- 6f7
- Roman numeral
- MDCCLXXXIII
- Scientific notation
- 1.783 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
The American war ran from 1775 to 1783, with the declaration of independence in 1776 falling more than a year after the fighting started.
View 1775 →Independence was declared in 1776 and recognised by treaty in 1783. The seven years between are the war, which is a distinction the two dates make easy to overlook.
View 1776 →Numbers Around Us
- appears alongside1775
why?
Strength 0.50, confidence "high".
History
The Treaty of Paris recognised American independence and granted territory well beyond what the thirteen colonies had claimed, including land Britain still occupied. The concession owed much to the war having become expensive and unpopular in Britain itself.
DocumentedHistoryGeography: United States and United KingdomPeriod: 1783
Common questions
Is 1783 a prime number?
Yes, 1783 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 1783?
The factors of 1783 are 1, 1783.
What is 1783 in Roman numerals?
1783 in Roman numerals is MDCCLXXXIII.
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