14
14 is the atomic number of silicon and the number of days in a fortnight.
- Even
- Composite
Where 14 fits
Why 14 is special
14 links the element behind modern computing (silicon) to a unit of time still in everyday British and Commonwealth use.
Same number, different meanings
How 14 is understood across different contexts — never implying one meaning because of another.
- Mathematics
14 links the element behind modern computing (silicon) to a unit of time still in everyday British and Commonwealth use.
- Science
14 is the atomic number of silicon, the element underlying modern semiconductor electronics.
- Everyday life
A fortnight — 14 days — remains everyday British and Commonwealth English usage, though the term is rare in American English, which more often says 'two weeks'.
Factors & digit properties
- Divisors (4)
- 1, 2, 7, 14
- Prime factorisation
- 2 × 7
- Digit sum
- 5
- Digital root
- 5
Representations
- Decimal
- 14
- Binary
- 1110
- Octal
- 16
- Hexadecimal
- e
- Roman numeral
- XIV
- Scientific notation
- 1.400 × 10^1
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
14 is a factor of 28 (14 × 2 = 28).
View 28 →Mathematically related
- is a factor of28
why?
Strength 0.50, confidence "high".
Science
14 is the atomic number of silicon, the element underlying modern semiconductor electronics.
DocumentedScience
Everyday life
A fortnight — 14 days — remains everyday British and Commonwealth English usage, though the term is rare in American English, which more often says 'two weeks'.
Widely documentedEveryday lifeGeography: United Kingdom and Commonwealth
Common questions
Is 14 a prime number?
No, 14 is not prime.
What are the factors of 14?
The factors of 14 are 1, 2, 7, 14.
What is 14 in Roman numerals?
14 in Roman numerals is XIV.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026