955
E955 is sucralose.
- Odd
- Composite
Where 955 fits
Why 955 is special
It is made by replacing three hydroxyl groups on sucrose with chlorine, so it is a modified sugar rather than a compound unrelated to sugar.
Factors & digit properties
- Divisors (4)
- 1, 5, 191, 955
- Prime factorisation
- 5 × 191
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 955
- Scientific notation
- 9.550 × 10^2
Roman numerals
C M L V
CMLV uses the subtractive pair CM: a hundred before a thousand — a thousand minus a hundred.
Binary
1 1 1 0 1 1 1 0 1 1
1 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 955
Octal
1 6 7 3
1 × 512 + 6 × 64 + 7 × 8 + 3 × 1 = 955
Hexadecimal
3 b b
3 × 256 + b × 16 + b × 1 = 955
Read as powers of two: 512 + 256 + 128 + 32 + 16 + 8 + 2 + 1 = 955.
In historical numeral systems
Egyptian
9 coils of rope, 5 hobbles, 5 strokes
9 × 100 + 5 × 10 + 5 × 1 = 955. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
1 corner wedge + 5 vertical wedges (sixties place), 5 corner wedges + 5 vertical wedges (units place)
15 × 60 + 55 = 955. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
sampi, then nu, then epsilon, marked as a numeral
sampi-nu-epsilon + keraia
sampi + nu + epsilon 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 nun, then he
tav-tav-qof-nun-he
tav (400) + tav (400) + qof (100) + nun (50) + he (5) = 955, 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
- Semiprime
Related numbers & connections
Saccharin and sucralose are both non-nutritive sweeteners with quite different regulatory histories.
View 954 →Sucralose and acesulfame K are frequently blended, since their sweetness profiles compensate for each other.
View 950 →Everyday life
E955 sucralose is produced by selective chlorination of sucrose, giving a compound roughly 600 times sweeter than sugar that is largely not metabolised.
DocumentedEveryday lifeGeography: European Union and states adopting the E number systemPeriod: 1962–
Common questions
Is 955 a prime number?
No, 955 is not prime.
What are the factors of 955?
The factors of 955 are 1, 5, 191, 955.
What is 955 in Roman numerals?
955 in Roman numerals is CMLV. CM is subtractive: a hundred before a thousand — a thousand minus a hundred. Written additively it would be DCCCCLV, 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