1006
SN 1006 was the brightest stellar event in recorded history.
- Even
- Composite
Where 1006 fits
Why 1006 is special
Observers in China, Egypt, Iraq, Japan and Europe all recorded it in 1006, and Egyptian accounts describe it as bright enough to read by. The independent records from four civilisations make it one of the best-attested astronomical events of the medieval world.
Same number, different meanings
How 1006 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Observers in China, Egypt, Iraq, Japan and Europe all recorded it in 1006, and Egyptian accounts describe it as bright enough to read by. The independent records from four civilisations make it one of the best-attested astronomical events of the medieval world.
- Science
A supernova in 1006 was described independently by Chinese, Arabic, Japanese and European observers, several noting it was bright enough to read by at night. The convergence of unconnected records is what makes the event so firmly dated.
- Media & popular culture
BWV 1006 is the third partita for solo violin. Bach later arranged its Prelude for organ and orchestra in two separate cantatas.
Factors & digit properties
- Divisors (4)
- 1, 2, 503, 1006
- Prime factorisation
- 2 × 503
- Digit sum
- 7
- Digital root
- 7
Representations
- Decimal
- 1006
- Binary
- 1111101110
- Octal
- 1756
- Hexadecimal
- 3ee
- Roman numeral
- MVI
- Scientific notation
- 1.006 × 10^3
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
Two supernovae recorded within fifty years of each other by observers across Asia, the Middle East and Europe. Nothing comparable has been seen with the naked eye since 1604.
View 1054 →Numbers Around Us
- appears alongside1054
why?
Strength 0.50, confidence "high".
Science
A supernova in 1006 was described independently by Chinese, Arabic, Japanese and European observers, several noting it was bright enough to read by at night. The convergence of unconnected records is what makes the event so firmly dated.
DocumentedSciencePeriod: 1006
Media & popular culture
BWV 1006 is the third partita for solo violin. Bach later arranged its Prelude for organ and orchestra in two separate cantatas.
DocumentedMedia & popular cultureGeography: GermanyPeriod: 1720
Common questions
Is 1006 a prime number?
No, 1006 is not prime.
What are the factors of 1006?
The factors of 1006 are 1, 2, 503, 1006.
What is 1006 in Roman numerals?
1006 in Roman numerals is MVI.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 3 August 2026