1623
1623 is the year Shakespeare's First Folio was published.
- Odd
- Composite
Where 1623 fits
Why 1623 is special
Eighteen plays appear in no earlier printed source and would otherwise be lost, including Macbeth and The Tempest. Two colleagues assembled it seven years after his death.
Same number, different meanings
How 1623 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Eighteen plays appear in no earlier printed source and would otherwise be lost, including Macbeth and The Tempest. Two colleagues assembled it seven years after his death.
- History
In 1623, the First Folio collected Shakespeare's plays, preserving eighteen that had never been printed (England).
- Culture
The First Folio of 1623 preserves eighteen plays with no surviving earlier text — Macbeth, The Tempest, Twelfth Night among them. Without it a third of the canon would not exist.
1623 is part of
Factors & digit properties
- Divisors (4)
- 1, 3, 541, 1623
- Prime factorisation
- 3 × 541
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 1623
- Scientific notation
- 1.623 × 10^3
Roman numerals
M D C X X I I I
Binary
1 1 0 0 1 0 1 0 1 1 1
1 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 1,623
Octal
3 1 2 7
3 × 512 + 1 × 64 + 2 × 8 + 7 × 1 = 1,623
Hexadecimal
6 5 7
6 × 256 + 5 × 16 + 7 × 1 = 1,623
Read as powers of two: 1,024 + 512 + 64 + 16 + 4 + 2 + 1 = 1,623.
In historical numeral systems
Egyptian
1 lotus, 6 coils of rope, 2 hobbles, 3 strokes
1 × 1,000 + 6 × 100 + 2 × 10 + 3 × 1 = 1,623. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 7 vertical wedges (sixties place), 3 vertical wedges (units place)
27 × 60 + 3 = 1623. 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
- Semiprime
Related numbers & connections
1623 is a year in the 17th century, in the 1620s.
Shakespeare died in 1616 and the First Folio appeared in 1623, preserving eighteen plays that survive in no earlier text.
View 1616 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- is associated with1616
why?
Strength 0.50, confidence "high".
History
In 1623, the First Folio collected Shakespeare's plays, preserving eighteen that had never been printed (England).
DocumentedHistoryGeography: EnglandPeriod: 1623
Culture
The First Folio of 1623 preserves eighteen plays with no surviving earlier text — Macbeth, The Tempest, Twelfth Night among them. Without it a third of the canon would not exist.
DocumentedCultureGeography: EnglandPeriod: 1623
Common questions
Is 1623 a prime number?
No, 1623 is not prime.
What are the factors of 1623?
The factors of 1623 are 1, 3, 541, 1623.
What is 1623 in Roman numerals?
1623 in Roman numerals is MDCXXIII.
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