1566
1566 is the year of the Iconoclastic Fury in the Low Countries.
- Even
- Composite
Where 1566 fits
Why 1566 is special
Crowds stripped churches of images across the region within weeks. The Spanish response to it is the immediate cause of the Dutch Revolt two years later.
1566 is part of
Factors & digit properties
- Divisors (16)
- 1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 174, 261, 522, 783, 1566
- Prime factorisation
- 2 × 3^3 × 29
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 1566
- Scientific notation
- 1.566 × 10^3
Roman numerals
M D L X V I
Binary
1 1 0 0 0 0 1 1 1 1 0
1 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,566
Octal
3 0 3 6
3 × 512 + 0 × 64 + 3 × 8 + 6 × 1 = 1,566
Hexadecimal
6 1 e
6 × 256 + 1 × 16 + e × 1 = 1,566
Read as powers of two: 1,024 + 512 + 16 + 8 + 4 + 2 = 1,566.
In historical numeral systems
Egyptian
1 lotus, 5 coils of rope, 6 hobbles, 6 strokes
1 × 1,000 + 5 × 100 + 6 × 10 + 6 × 1 = 1,566. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 6 vertical wedges (sixties place), 6 vertical wedges (units place)
26 × 60 + 6 = 1566. 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
- Abundant number
- Harshad (Niven) number
Related numbers & connections
1566 is a year in the 16th century, in the 1560s.
The Iconoclastic Fury of 1566 and the severity of the Spanish response to it are the immediate cause of the Dutch Revolt two years later.
View 1568 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- developed from1568
why?
Strength 0.50, confidence "high".
History
In 1566, the Dutch Revolt against Spanish rule began with the iconoclastic fury (Low Countries).
DocumentedHistoryGeography: Low CountriesPeriod: 1566The 1566 image-breaking spread across the Low Countries in a matter of weeks, and the severity of the Spanish reaction turned religious unrest into an eighty-year war for independence.
DocumentedHistoryGeography: Low CountriesPeriod: 1566
Common questions
Is 1566 a prime number?
No, 1566 is not prime.
What are the factors of 1566?
The factors of 1566 are 1, 2, 3, 6, 9, 18, 27, 29, 54, 58, 87, 174, 261, 522, 783, 1566.
What is 1566 in Roman numerals?
1566 in Roman numerals is MDLXVI.
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: 15 July 2026