1679
1679 is the year the Habeas Corpus Act was passed.
- Odd
- Composite
Where 1679 fits
Why 1679 is special
It required that a detained person be brought before a court to test the lawfulness of the detention. The principle predates the Act, which made it enforceable rather than merely available.
1679 is part of
Factors & digit properties
- Divisors (4)
- 1, 23, 73, 1679
- Prime factorisation
- 23 × 73
- Digit sum
- 23
- Digital root
- 5
Representations
- Decimal
- 1679
- Binary
- 11010001111
- Octal
- 3217
- Hexadecimal
- 68f
- Roman numeral
- MDCLXXIX
- Scientific notation
- 1.679 × 10^3
Other mathematical patterns
- Deficient number
- Happy number
- Semiprime
- Harshad (Niven) number
Law & regulation
Habeas corpus existed before 1679; the Act supplied penalties for officials who ignored it and closed the loopholes that had made it evadable. Rights without enforcement mechanisms is the problem it was written to solve.
DocumentedLaw & regulationGeography: EnglandPeriod: 1679
Common questions
Is 1679 a prime number?
No, 1679 is not prime.
What are the factors of 1679?
The factors of 1679 are 1, 23, 73, 1679.
What is 1679 in Roman numerals?
1679 in Roman numerals is MDCLXXIX.
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