2764
The 2764 is an 8-kilobyte EPROM.
- Even
- Composite
Where 2764 fits
Why 2764 is special
It was the common size for home computer and arcade machine firmware in the early 1980s, and dumps of those chips are how much of that software survives.
Factors & digit properties
- Divisors (6)
- 1, 2, 4, 691, 1382, 2764
- Prime factorisation
- 2^2 × 691
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 2764
- Scientific notation
- 2.764 × 10^3
Roman numerals
M M D C C L X I V
MMDCCLXIV uses the subtractive pair IV: one before five — five minus one.
Binary
1 0 1 0 1 1 0 0 1 1 0 0
1 × 2,048 + 0 × 1,024 + 1 × 512 + 0 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 2,764
Octal
5 3 1 4
5 × 512 + 3 × 64 + 1 × 8 + 4 × 1 = 2,764
Hexadecimal
a c c
a × 256 + c × 16 + c × 1 = 2,764
Read as powers of two: 2,048 + 512 + 128 + 64 + 8 + 4 = 2,764.
In historical numeral systems
Egyptian
2 lotuses, 7 coils of rope, 6 hobbles, 4 strokes
2 × 1,000 + 7 × 100 + 6 × 10 + 4 × 1 = 2,764. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
4 corner wedges + 6 vertical wedges (sixties place), 4 vertical wedges (units place)
46 × 60 + 4 = 2764. 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
The doubling continues: 2732 holds 32 kilobits and 2764 holds 64.
View 2732 →Technology & computing
The 2764 stores 64 kilobits. It was widely used for system ROMs and arcade program storage, and preservation projects rely on reading such devices directly.
DocumentedTechnology & computingPeriod: 1981–
Common questions
Is 2764 a prime number?
No, 2764 is not prime.
What are the factors of 2764?
The factors of 2764 are 1, 2, 4, 691, 1382, 2764.
What is 2764 in Roman numerals?
2764 in Roman numerals is MMDCCLXIV. IV is subtractive: one before five — five minus one. Written additively it would be MMDCCLXIIII, 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