1311
1311 is a year in the 14th century. The Council of Vienne opened to judge the Templars and settle the Franciscan dispute over poverty (Europe).
- Odd
- Composite
Where 1311 fits
Why 1311 is special
1311 has a profile because of what happened in it rather than because of any property of the number: the Council of Vienne opened to judge the Templars and settle the Franciscan dispute over poverty (Europe).
1311 is part of
Factors & digit properties
- Divisors (8)
- 1, 3, 19, 23, 57, 69, 437, 1311
- Prime factorisation
- 3 × 19 × 23
- Digit sum
- 6
- Digital root
- 6
Representations
- Decimal
- 1311
- Scientific notation
- 1.311 × 10^3
Roman numerals
M C C C X I
Binary
1 0 1 0 0 0 1 1 1 1 1
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 1,311
Octal
2 4 3 7
2 × 512 + 4 × 64 + 3 × 8 + 7 × 1 = 1,311
Hexadecimal
5 1 f
5 × 256 + 1 × 16 + f × 1 = 1,311
Read as powers of two: 1,024 + 256 + 16 + 8 + 4 + 2 + 1 = 1,311.
In historical numeral systems
Egyptian
1 lotus, 3 coils of rope, 1 hobble, 1 stroke
1 × 1,000 + 3 × 100 + 1 × 10 + 1 × 1 = 1,311. 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), 5 corner wedges + 1 vertical wedge (units place)
21 × 60 + 51 = 1311. 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
Related numbers & connections
1311 is a year in the 14th century, in the 1310s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1311, the Council of Vienne opened to judge the Templars and settle the Franciscan dispute over poverty (Europe).
DocumentedHistoryGeography: EuropePeriod: 1311
Common questions
Is 1311 a prime number?
No, 1311 is not prime.
What are the factors of 1311?
The factors of 1311 are 1, 3, 19, 23, 57, 69, 437, 1311.
What is 1311 in Roman numerals?
1311 in Roman numerals is MCCCXI.
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