1471
1471 is the year the Yorkist victory at Tewkesbury effectively ended the main phase of the Wars of the Roses.
- Odd
- Prime
Where 1471 fits
Why 1471 is special
Henry VI died in the Tower within weeks, almost certainly murdered. The wars nonetheless resumed and ran another fourteen years.
Same number, different meanings
How 1471 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Henry VI died in the Tower within weeks, almost certainly murdered. The wars nonetheless resumed and ran another fourteen years.
- History
In 1471, Edward IV won at Barnet and Tewkesbury within a month, and the Lancastrian line ended (England).
- Technology & computing
IEEE 1471 introduced architecture description in terms of stakeholders, concerns and viewpoints. It was adopted internationally as ISO/IEC/IEEE 42010.
1471 is part of
Factors & digit properties
- Divisors (2)
- 1, 1471
- Prime factorisation
- 1471
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 1471
- Scientific notation
- 1.471 × 10^3
Roman numerals
M C D L X X I
MCDLXXI uses the subtractive pair CD: a hundred before five hundred — five hundred minus a hundred.
Binary
1 0 1 1 0 1 1 1 1 1 1
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 1,471
Octal
2 6 7 7
2 × 512 + 6 × 64 + 7 × 8 + 7 × 1 = 1,471
Hexadecimal
5 b f
5 × 256 + b × 16 + f × 1 = 1,471
Read as powers of two: 1,024 + 256 + 128 + 32 + 16 + 8 + 4 + 2 + 1 = 1,471.
In historical numeral systems
Egyptian
1 lotus, 4 coils of rope, 7 hobbles, 1 stroke
1 × 1,000 + 4 × 100 + 7 × 10 + 1 × 1 = 1,471. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 4 vertical wedges (sixties place), 3 corner wedges + 1 vertical wedge (units place)
24 × 60 + 31 = 1471. Places are separated by a space on the tablet, with the higher place written first.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Deficient number
- Lucky number (mathematical sieve)
Related numbers & connections
1471 is a year in the 15th century, in the 1470s.
The Wars of the Roses began in 1455 and Tewkesbury in 1471 destroyed the Lancastrian cause, though fighting resumed and ran until 1485.
View 1455 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- developed from1455
why?
Strength 0.50, confidence "high".
History
In 1471, Edward IV won at Barnet and Tewkesbury within a month, and the Lancastrian line ended (England).
DocumentedHistoryGeography: EnglandPeriod: 1471Tewkesbury in 1471 destroyed the Lancastrian cause and Henry VI died immediately afterwards. Fighting resumed and continued until 1485, which is why 'the end of the wars' has several candidate dates.
DocumentedHistoryGeography: EnglandPeriod: 1471
Technology & computing
IEEE 1471 introduced architecture description in terms of stakeholders, concerns and viewpoints. It was adopted internationally as ISO/IEC/IEEE 42010.
DocumentedTechnology & computingGeography: International — IEEEPeriod: 2000–
Common questions
Is 1471 a prime number?
Yes, 1471 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 1471?
The factors of 1471 are 1, 1471.
What is 1471 in Roman numerals?
1471 in Roman numerals is MCDLXXI. CD is subtractive: a hundred before five hundred — five hundred minus a hundred. Written additively it would be MCCCCLXXI, which Roman inscriptions used freely — the strict subtractive form is a later convention.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 3 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026