1266
1266 is a year in the 13th century. The Treaty of Perth transferred the Hebrides and Man to Scotland (Scotland and Norway).
- Even
- Composite
Where 1266 fits
Why 1266 is special
1266 has a profile because of what happened in it rather than because of any property of the number: the Treaty of Perth transferred the Hebrides and Man to Scotland (Scotland and Norway).
1266 is part of
Factors & digit properties
- Divisors (8)
- 1, 2, 3, 6, 211, 422, 633, 1266
- Prime factorisation
- 2 × 3 × 211
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 1266
- Scientific notation
- 1.266 × 10^3
Roman numerals
M C C L X V I
Binary
1 0 0 1 1 1 1 0 0 1 0
1 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 1,266
Octal
2 3 6 2
2 × 512 + 3 × 64 + 6 × 8 + 2 × 1 = 1,266
Hexadecimal
4 f 2
4 × 256 + f × 16 + 2 × 1 = 1,266
Read as powers of two: 1,024 + 128 + 64 + 32 + 16 + 2 = 1,266.
In historical numeral systems
Egyptian
1 lotus, 2 coils of rope, 6 hobbles, 6 strokes
1 × 1,000 + 2 × 100 + 6 × 10 + 6 × 1 = 1,266. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 1 vertical wedge (sixties place), 6 vertical wedges (units place)
21 × 60 + 6 = 1266. 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
Related numbers & connections
1266 is a year in the 13th century, in the 1260s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1266, the Treaty of Perth transferred the Hebrides and Man to Scotland (Scotland and Norway).
DocumentedHistoryGeography: Scotland and NorwayPeriod: 1266
Common questions
Is 1266 a prime number?
No, 1266 is not prime.
What are the factors of 1266?
The factors of 1266 are 1, 2, 3, 6, 211, 422, 633, 1266.
What is 1266 in Roman numerals?
1266 in Roman numerals is MCCLXVI.
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: 15 July 2026