1856
1856 is the year the Bessemer process made steel cheap.
- Even
- Composite
Where 1856 fits
Why 1856 is special
Blowing air through molten iron burned out impurities in minutes rather than days. Steel went from a luxury to a structural material, which is why skyscrapers, long-span bridges and modern railways became possible.
Factors & digit properties
- Divisors (14)
- 1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 232, 464, 928, 1856
- Prime factorisation
- 2^6 × 29
- Digit sum
- 20
- Digital root
- 2
Representations
- Decimal
- 1856
- Binary
- 11101000000
- Octal
- 3500
- Hexadecimal
- 740
- Roman numeral
- MDCCCLVI
- Scientific notation
- 1.856 × 10^3
Other mathematical patterns
- Abundant number
Related numbers & connections
Cheap steel from 1856 made tall buildings structurally possible, and the Empire State Building of 1931 is among the results — finished in 410 days and largely empty for a decade.
View 1931 →Technology & computing
The Bessemer converter cut steel production time from days to minutes and its cost by an order of magnitude. Almost every large structure built since depends on steel having become ordinary at that moment.
DocumentedTechnology & computingGeography: EnglandPeriod: 1856
Common questions
Is 1856 a prime number?
No, 1856 is not prime.
What are the factors of 1856?
The factors of 1856 are 1, 2, 4, 8, 16, 29, 32, 58, 64, 116, 232, 464, 928, 1856.
What is 1856 in Roman numerals?
1856 in Roman numerals is MDCCCLVI.
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