1587
1587 is the year Mary, Queen of Scots was executed.
- Odd
- Composite
Where 1587 fits
Why 1587 is special
Elizabeth signed the warrant and then blamed its dispatch on her secretary. The execution removed the Catholic claimant and contributed directly to Spain sending the Armada the following year.
1587 is part of
Factors & digit properties
- Divisors (6)
- 1, 3, 23, 69, 529, 1587
- Prime factorisation
- 3 × 23^2
- Digit sum
- 21
- Digital root
- 3
Representations
- Decimal
- 1587
- Binary
- 11000110011
- Octal
- 3063
- Hexadecimal
- 633
- Roman numeral
- MDLXXXVII
- Scientific notation
- 1.587 × 10^3
Other mathematical patterns
- Deficient number
- Happy number
- Lucky number (mathematical sieve)
Related numbers & connections
Mary, Queen of Scots was executed in 1587 and Spain launched the Armada the following year, citing it among its reasons.
View 1588 →History
Elizabeth I signed Mary's death warrant and afterwards insisted she had not intended it sent, imprisoning the secretary who dispatched it. The execution is among Spain's stated reasons for launching the Armada in 1588.
DocumentedHistoryGeography: England and ScotlandPeriod: 1587
Common questions
Is 1587 a prime number?
No, 1587 is not prime.
What are the factors of 1587?
The factors of 1587 are 1, 3, 23, 69, 529, 1587.
What is 1587 in Roman numerals?
1587 in Roman numerals is MDLXXXVII.
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