563
563 BC is a commonly cited birth year for the Buddha.
- Odd
- Prime
Where 563 fits
Why 563 is special
Dates for his life vary by more than a century between traditions and modern scholarship. The disagreement is unusual for a figure of that importance and reflects how the chronology was transmitted.
563 is part of
Factors & digit properties
- Divisors (2)
- 1, 563
- Prime factorisation
- 563
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 563
- Scientific notation
- 5.630 × 10^2
Roman numerals
D L X I I I
Binary
1 0 0 0 1 1 0 0 1 1
1 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 563
Octal
1 0 6 3
1 × 512 + 0 × 64 + 6 × 8 + 3 × 1 = 563
Hexadecimal
2 3 3
2 × 256 + 3 × 16 + 3 × 1 = 563
Read as powers of two: 512 + 32 + 16 + 2 + 1 = 563.
In historical numeral systems
Egyptian
5 coils of rope, 6 hobbles, 3 strokes
5 × 100 + 6 × 10 + 3 × 1 = 563. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
9 vertical wedges (sixties place), 2 corner wedges + 3 vertical wedges (units place)
9 × 60 + 23 = 563. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
phi, then xi, then gamma, marked as a numeral
phi-xi-gamma + keraia
phi + xi + gamma written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
tav, then qof, then samekh, then gimel
tav-qof-samekh-gimel
tav (400) + qof (100) + samekh (60) + gimel (3) = 563, written in descending order.
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
- Safe prime
Related numbers & connections
The traditional birth years of the Buddha and Confucius fall within a dozen years of each other, and both produced systems that shaped the administration of large parts of Asia for two millennia.
View 551 →Numbers Around Us
- appears alongside551
why?
Strength 0.50, confidence "high".
Religion & belief
Traditional and academic dates for the Buddha's life differ by over a century, with 563 BC among the most cited. The uncertainty follows from chronologies preserved orally and anchored to regnal lists that are themselves disputed.
DocumentedReligion & beliefGeography: South AsiaPeriod: around 563 BC
Common questions
Is 563 a prime number?
Yes, 563 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 563?
The factors of 563 are 1, 563.
What is 563 in Roman numerals?
563 in Roman numerals is DLXIII.
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