1774
1774 is the year oxygen was isolated.
- Even
- Composite
Where 1774 fits
Why 1774 is special
Priestley and Scheele identified it independently, and both interpreted it within phlogiston theory. Lavoisier understood what it was, named it, and is generally credited despite not being first.
Factors & digit properties
- Divisors (4)
- 1, 2, 887, 1774
- Prime factorisation
- 2 × 887
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 1774
- Binary
- 11011101110
- Octal
- 3356
- Hexadecimal
- 6ee
- Roman numeral
- MDCCLXXIV
- Scientific notation
- 1.774 × 10^3
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
Cavendish showed in 1766 that burning inflammable air produced water, and oxygen was isolated in 1774. Between them, water and air stopped being elements.
View 1766 →Other connections
- developed from1766
why?
Strength 0.50, confidence "high".
Science
Priestley and Scheele produced oxygen before Lavoisier and explained it as 'dephlogisticated air'. Lavoisier's contribution was recognising what it meant, which is why credit is contested and why it usually settles on him.
DocumentedSciencePeriod: 1774
Common questions
Is 1774 a prime number?
No, 1774 is not prime.
What are the factors of 1774?
The factors of 1774 are 1, 2, 887, 1774.
What is 1774 in Roman numerals?
1774 in Roman numerals is MDCCLXXIV.
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