1855
1855 is the year the Bessemer process was first described publicly.
- Odd
- Composite
Where 1855 fits
Why 1855 is special
Bessemer's paper was received with interest and his licensees failed to reproduce the results, because the process only works with ores low in phosphorus. Solving that took another twenty years.
Factors & digit properties
- Divisors (8)
- 1, 5, 7, 35, 53, 265, 371, 1855
- Prime factorisation
- 5 × 7 × 53
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 1855
- Binary
- 11100111111
- Octal
- 3477
- Hexadecimal
- 73f
- Roman numeral
- MDCCCLV
- Scientific notation
- 1.855 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
Bessemer described his process publicly in 1855 and licensees could not reproduce it, because it works only with low-phosphorus ore. The general solution took another twenty years.
View 1856 →Other connections
- developed from1856
why?
Strength 0.50, confidence "high".
Technology & computing
Bessemer's converter worked on the ore he had used and failed for licensees using phosphoric ores. The gap between demonstration and general applicability took two decades and another inventor to close.
DocumentedTechnology & computingGeography: EnglandPeriod: 1855
Common questions
Is 1855 a prime number?
No, 1855 is not prime.
What are the factors of 1855?
The factors of 1855 are 1, 5, 7, 35, 53, 265, 371, 1855.
What is 1855 in Roman numerals?
1855 in Roman numerals is MDCCCLV.
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