1775
1775 is the year the American Revolutionary War began.
- Odd
- Composite
Where 1775 fits
Why 1775 is special
Fighting started at Lexington and Concord in April, more than a year before independence was declared. The gap between the war starting and the colonies formally seeking separation is routinely collapsed in popular accounts.
Factors & digit properties
- Divisors (6)
- 1, 5, 25, 71, 355, 1775
- Prime factorisation
- 5^2 × 71
- Digit sum
- 20
- Digital root
- 2
Representations
- Decimal
- 1775
- Binary
- 11011101111
- Octal
- 3357
- Hexadecimal
- 6ef
- Roman numeral
- MDCCLXXV
- Scientific notation
- 1.775 × 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 1783 →Numbers Around Us
- appears alongside1783
why?
Strength 0.50, confidence "high".
History
Fighting began at Lexington and Concord in April 1775, more than a year before independence was declared. Popular accounts routinely collapse the two, which obscures that the colonies fought for a year while still formally seeking redress.
DocumentedHistoryGeography: United StatesPeriod: 1775
Common questions
Is 1775 a prime number?
No, 1775 is not prime.
What are the factors of 1775?
The factors of 1775 are 1, 5, 25, 71, 355, 1775.
What is 1775 in Roman numerals?
1775 in Roman numerals is MDCCLXXV.
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