1785
1785 is the year the power loom was patented.
- Odd
- Composite
Where 1785 fits
Why 1785 is special
Weaving mechanised roughly twenty years after spinning, and the gap had caused a shortage of weavers followed by their rapid displacement. Automation arriving unevenly across a supply chain produces exactly that whipsaw.
1785 is part of
Factors & digit properties
- Divisors (16)
- 1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785
- Prime factorisation
- 3 × 5 × 7 × 17
- Digit sum
- 21
- Digital root
- 3
Representations
- Decimal
- 1785
- Binary
- 11011111001
- Octal
- 3371
- Hexadecimal
- 6f9
- Roman numeral
- MDCCLXXXV
- Scientific notation
- 1.785 × 10^3
Other mathematical patterns
- Deficient number
- Happy number
- Harshad (Niven) number
Finance & economics
Spinning mechanised first and created a weaver shortage; the power loom then removed the shortage and the trade with it. Uneven automation across stages of one industry produced boom and collapse within a generation.
DocumentedFinance & economicsGeography: EnglandPeriod: 1785
Common questions
Is 1785 a prime number?
No, 1785 is not prime.
What are the factors of 1785?
The factors of 1785 are 1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785.
What is 1785 in Roman numerals?
1785 in Roman numerals is MDCCLXXXV.
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