961
+961 is the international calling code for Lebanon.
Where 961 fits
Why 961 is special
Lebanon's parliament allocates seats by religious confession under an arrangement from 1943, and no census has been conducted since 1932 because the result would destabilise it.
961 is part of
Factors & digit properties
- Divisors (3)
- 1, 31, 961
- Prime factorisation
- 31^2
- Digit sum
- 16
- Digital root
- 7
Representations
- Decimal
- 961
- Scientific notation
- 9.610 × 10^2
Roman numerals
C M L X I
CMLXI uses the subtractive pair CM: a hundred before a thousand — a thousand minus a hundred.
Binary
1 1 1 1 0 0 0 0 0 1
1 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 1 × 1 = 961
Octal
1 7 0 1
1 × 512 + 7 × 64 + 0 × 8 + 1 × 1 = 961
Hexadecimal
3 c 1
3 × 256 + c × 16 + 1 × 1 = 961
Read as powers of two: 512 + 256 + 128 + 64 + 1 = 961.
In historical numeral systems
Egyptian
9 coils of rope, 6 hobbles, 1 stroke
9 × 100 + 6 × 10 + 1 × 1 = 961. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 6 vertical wedges (sixties place), 1 vertical wedge (units place)
16 × 60 + 1 = 961. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
sampi, then xi, then alpha, marked as a numeral
sampi-xi-alpha + keraia
sampi + xi + alpha 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 tav, then qof, then samekh, then alef
tav-tav-qof-samekh-alef
tav (400) + tav (400) + qof (100) + samekh (60) + alef (1) = 961, 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
- Powerful number
- Semiprime
- Lucky number (mathematical sieve)
Related numbers & connections
Lebanon and Syria share a border and a long history of Syrian involvement in Lebanese politics. Lebanon has not held a census since 1932.
View 963 →Nearby in a sequence
- is adjacent to963
why?
Strength 0.50, confidence "high".
Geography
+961 reaches Lebanon, which distributes political office by religious community and has not held a census since 1932 — conducting one would require renegotiating the entire settlement.
DocumentedGeographyGeography: Lebanon
Common questions
Is 961 a prime number?
No, 961 is not prime.
What are the factors of 961?
The factors of 961 are 1, 31, 961.
What is 961 in Roman numerals?
961 in Roman numerals is CMLXI. CM is subtractive: a hundred before a thousand — a thousand minus a hundred. Written additively it would be DCCCCLXI, 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