1323
RFC 1323 defined the TCP high performance extensions.
- Odd
- Composite
Where 1323 fits
Why 1323 is special
Window scaling comes from here, without which a single connection cannot exceed 64 kilobytes in flight regardless of the link's capacity.
1323 connects to:
- historical years — appears in
- internet protocol numbers — appears in
- 7323 — developed from
Same number, different meanings
How 1323 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Window scaling comes from here, without which a single connection cannot exceed 64 kilobytes in flight regardless of the link's capacity.
- History
In 1323, the Treaty of Noteborg fixed the first Swedish-Novgorodian border in Finland (Northern Europe).
- Technology & computing
RFC 1323 specified TCP window scaling and timestamps, removing the 16-bit window limit that capped throughput on high bandwidth-delay paths. It was updated by RFC 7323.
1323 is part of
Factors & digit properties
- Divisors (12)
- 1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323
- Prime factorisation
- 3^3 × 7^2
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 1323
- Scientific notation
- 1.323 × 10^3
Roman numerals
M C C C X X I I I
Binary
1 0 1 0 0 1 0 1 0 1 1
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 1,323
Octal
2 4 5 3
2 × 512 + 4 × 64 + 5 × 8 + 3 × 1 = 1,323
Hexadecimal
5 2 b
5 × 256 + 2 × 16 + b × 1 = 1,323
Read as powers of two: 1,024 + 256 + 32 + 8 + 2 + 1 = 1,323.
In historical numeral systems
Egyptian
1 lotus, 3 coils of rope, 2 hobbles, 3 strokes
1 × 1,000 + 3 × 100 + 2 × 10 + 3 × 1 = 1,323. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 2 vertical wedges (sixties place), 3 vertical wedges (units place)
22 × 60 + 3 = 1323. 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
- Happy number
- Powerful number
- Harshad (Niven) number
- Lucky number (mathematical sieve)
Related numbers & connections
1323 is a year in the 14th century, in the 1320s.
RFC 7323 replaced the 1992 extensions document after twenty-three years, mainly to tighten ambiguous behaviour.
View 7323 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
- appears inNumbers that make the internet work
why?
Strength 0.50, confidence "high".
Other connections
- developed from7323
why?
Strength 0.50, confidence "high".
History
In 1323, the Treaty of Noteborg fixed the first Swedish-Novgorodian border in Finland (Northern Europe).
DocumentedHistoryGeography: Northern EuropePeriod: 1323
Technology & computing
RFC 1323 specified TCP window scaling and timestamps, removing the 16-bit window limit that capped throughput on high bandwidth-delay paths. It was updated by RFC 7323.
DocumentedTechnology & computingGeography: International — IETFPeriod: 1992
Common questions
Is 1323 a prime number?
No, 1323 is not prime.
What are the factors of 1323?
The factors of 1323 are 1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323.
What is 1323 in Roman numerals?
1323 in Roman numerals is MCCCXXIII.
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