471
E471 is the most common emulsifier in processed food.
- Odd
- Composite
Where 471 fits
Why 471 is special
It appears in bread, ice cream and chocolate, and can be derived from either animal or plant fat — which is why the same code can make a product unsuitable for vegetarians or not, without the label distinguishing.
Factors & digit properties
- Divisors (4)
- 1, 3, 157, 471
- Prime factorisation
- 3 × 157
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 471
- Binary
- 111010111
- Octal
- 727
- Hexadecimal
- 1d7
- Roman numeral
- CDLXXI
- Scientific notation
- 4.710 × 10^2
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
Both may be animal or plant derived, and the additive number does not say which.
View 570 →Everyday life
E471 may be made from vegetable oil or animal fat and the E-number does not distinguish. A single label code carries information that matters to a great many people and does not convey it.
DocumentedEveryday lifeGeography: European Union and United Kingdom
Common questions
Is 471 a prime number?
No, 471 is not prime.
What are the factors of 471?
The factors of 471 are 1, 3, 157, 471.
What is 471 in Roman numerals?
471 in Roman numerals is CDLXXI.
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: 3 August 2026