1571
1571 is the year of the Battle of Lepanto.
- Odd
- Prime
Where 1571 fits
Why 1571 is special
It was the last major naval battle fought primarily with oared galleys, and among the largest. Cervantes fought in it and lost the use of his left hand, which he described as the proudest thing he had done.
1571 is part of
Factors & digit properties
- Divisors (2)
- 1, 1571
- Prime factorisation
- 1571
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 1571
- Binary
- 11000100011
- Octal
- 3043
- Hexadecimal
- 623
- Roman numeral
- MDLXXI
- Scientific notation
- 1.571 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
The Great Siege of Malta in 1565 and Lepanto in 1571 both checked Ottoman expansion in the western Mediterranean within six years.
View 1565 →History
Lepanto in 1571 was fought by hundreds of oared galleys, a form of naval warfare that had lasted two thousand years and effectively ended with it. Sailing ships with broadside guns replaced them within a generation.
DocumentedHistoryGeography: Gulf of Patras, GreecePeriod: 1571
Common questions
Is 1571 a prime number?
Yes, 1571 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 1571?
The factors of 1571 are 1, 1571.
What is 1571 in Roman numerals?
1571 in Roman numerals is MDLXXI.
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