1790
1790 is the year the US patent system began.
- Even
- Composite
Where 1790 fits
Why 1790 is special
The first patent was signed by George Washington personally. Patents were examined for novelty from the start, which distinguished the American system from registration-only systems elsewhere.
Factors & digit properties
- Divisors (8)
- 1, 2, 5, 10, 179, 358, 895, 1790
- Prime factorisation
- 2 × 5 × 179
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 1790
- Binary
- 11011111110
- Octal
- 3376
- Hexadecimal
- 6fe
- Roman numeral
- MDCCXC
- Scientific notation
- 1.790 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
The Society of Arts offered prizes on condition inventions were not patented; the US patent system from 1790 examined and granted exclusive rights. Two opposite theories of how to encourage invention.
View 1754 →Law & regulation
The US system from 1790 required examination for novelty and utility before a patent issued, where several European systems simply registered claims. The difference shapes what a patent means in each jurisdiction to this day.
DocumentedLaw & regulationGeography: United StatesPeriod: 1790
Common questions
Is 1790 a prime number?
No, 1790 is not prime.
What are the factors of 1790?
The factors of 1790 are 1, 2, 5, 10, 179, 358, 895, 1790.
What is 1790 in Roman numerals?
1790 in Roman numerals is MDCCXC.
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