1264
1264 is a year in the 13th century. Simon de Montfort captured the king at Lewes and ruled England in his name (England).
- Even
- Composite
Where 1264 fits
Why 1264 is special
1264 has a profile because of what happened in it rather than because of any property of the number: Simon de Montfort captured the king at Lewes and ruled England in his name (England).
1264 is part of
Factors & digit properties
- Divisors (10)
- 1, 2, 4, 8, 16, 79, 158, 316, 632, 1264
- Prime factorisation
- 2^4 × 79
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 1264
- Scientific notation
- 1.264 × 10^3
Roman numerals
M C C L X I V
MCCLXIV uses the subtractive pair IV: one before five — five minus one.
Binary
1 0 0 1 1 1 1 0 0 0 0
1 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 1,264
Octal
2 3 6 0
2 × 512 + 3 × 64 + 6 × 8 + 0 × 1 = 1,264
Hexadecimal
4 f 0
4 × 256 + f × 16 + 0 × 1 = 1,264
Read as powers of two: 1,024 + 128 + 64 + 32 + 16 = 1,264.
In historical numeral systems
Egyptian
1 lotus, 2 coils of rope, 6 hobbles, 4 strokes
1 × 1,000 + 2 × 100 + 6 × 10 + 4 × 1 = 1,264. 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), 4 vertical wedges (units place)
21 × 60 + 4 = 1264. 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
1264 is a year in the 13th century, in the 1260s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1264, Simon de Montfort captured the king at Lewes and ruled England in his name (England).
DocumentedHistoryGeography: EnglandPeriod: 1264
Common questions
Is 1264 a prime number?
No, 1264 is not prime.
What are the factors of 1264?
The factors of 1264 are 1, 2, 4, 8, 16, 79, 158, 316, 632, 1264.
What is 1264 in Roman numerals?
1264 in Roman numerals is MCCLXIV. IV is subtractive: one before five — five minus one. Written additively it would be MCCLXIIII, 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: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 15 July 2026