903
E903 is carnauba wax.
- Odd
- Composite
Where 903 fits
Why 903 is special
It comes from a Brazilian palm, and it is the plant-derived alternative used where beeswax would be unacceptable.
903 is part of
Factors & digit properties
- Divisors (8)
- 1, 3, 7, 21, 43, 129, 301, 903
- Prime factorisation
- 3 × 7 × 43
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 903
- Scientific notation
- 9.030 × 10^2
Roman numerals
C M I I I
CMIII uses the subtractive pair CM: a hundred before a thousand — a thousand minus a hundred.
Binary
1 1 1 0 0 0 0 1 1 1
1 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 903
Octal
1 6 0 7
1 × 512 + 6 × 64 + 0 × 8 + 7 × 1 = 903
Hexadecimal
3 8 7
3 × 256 + 8 × 16 + 7 × 1 = 903
Read as powers of two: 512 + 256 + 128 + 4 + 2 + 1 = 903.
In historical numeral systems
Egyptian
9 coils of rope, 3 strokes
9 × 100 + 3 × 1 = 903. 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), 3 vertical wedges (units place)
15 × 60 + 3 = 903. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
sampi, then gamma, marked as a numeral
sampi-gamma + keraia
sampi + 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 tav, then qof, then gimel
tav-tav-qof-gimel
tav (400) + tav (400) + qof (100) + gimel (3) = 903, 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
- Triangular number
- Deficient number
- Lucky number (mathematical sieve)
Related numbers & connections
Beeswax and carnauba wax do the same job, and only one of them makes a product non-vegan.
View 901 →Other connections
- contrasts with901
why?
Strength 0.50, confidence "high".
Everyday life
E903 carnauba wax is obtained from the leaves of the Brazilian palm Copernicia prunifera and is used as a glazing agent, including where a non-animal source is required.
DocumentedEveryday lifeGeography: European Union and states adopting the E number systemPeriod: 1962–
Common questions
Is 903 a prime number?
No, 903 is not prime.
What are the factors of 903?
The factors of 903 are 1, 3, 7, 21, 43, 129, 301, 903.
What is 903 in Roman numerals?
903 in Roman numerals is CMIII. CM is subtractive: a hundred before a thousand — a thousand minus a hundred. Written additively it would be DCCCCIII, 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