266
+266 is the international calling code for Lesotho.
- Even
- Composite
Where 266 fits
Why 266 is special
Lesotho is entirely surrounded by South Africa and is the only country whose whole territory lies above 1,000 metres.
Factors & digit properties
- Divisors (8)
- 1, 2, 7, 14, 19, 38, 133, 266
- Prime factorisation
- 2 × 7 × 19
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 266
- Scientific notation
- 2.660 × 10^2
Roman numerals
C C L X V I
Binary
1 0 0 0 0 1 0 1 0
1 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 266
Octal
4 1 2
4 × 64 + 1 × 8 + 2 × 1 = 266
Hexadecimal
1 0 a
1 × 256 + 0 × 16 + a × 1 = 266
Read as powers of two: 256 + 8 + 2 = 266.
In historical numeral systems
Egyptian
2 coils of rope, 6 hobbles, 6 strokes
2 × 100 + 6 × 10 + 6 × 1 = 266. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
4 vertical wedges (sixties place), 2 corner wedges + 6 vertical wedges (units place)
4 × 60 + 26 = 266. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
sigma, then xi, then stigma, marked as a numeral
sigma-xi-stigma + keraia
sigma + xi + stigma written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
resh, then samekh, then vav
resh-samekh-vav
resh (200) + samekh (60) + vav (6) = 266, written in descending order.
Maya
2 bars + 3 dots (upper, twenties place) over 1 bar + 1 dot (lower, units place)
13 × 20 + 6 = 266. Places stack vertically with the smallest at the bottom, so the upper group is worth twenty times the lower.
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
- Harshad (Niven) number
Related numbers & connections
Lesotho and Eswatini are the two remaining African monarchies enclosed by or bordering South Africa. Lesotho is the only country lying entirely above 1,000 metres.
View 268 →Other connections
- is associated with268
why?
Strength 0.50, confidence "high".
Geography
+266 reaches Lesotho, one of only three countries completely enclosed by a single other state, and the only one lying entirely above 1,000 metres in elevation.
DocumentedGeographyGeography: Lesotho
Common questions
Is 266 a prime number?
No, 266 is not prime.
What are the factors of 266?
The factors of 266 are 1, 2, 7, 14, 19, 38, 133, 266.
What is 266 in Roman numerals?
266 in Roman numerals is CCLXVI.
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