914
914 millimetres is the three-foot narrow gauge.
- Even
- Composite
Where 914 fits
Why 914 is special
It was widespread in the American west and in Ireland, and it is wide enough to carry useful loads while still being cheap to lay through mountains.
Factors & digit properties
- Divisors (4)
- 1, 2, 457, 914
- Prime factorisation
- 2 × 457
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 914
- Binary
- 1110010010
- Octal
- 1622
- Hexadecimal
- 392
- Roman numeral
- CMXIV
- Scientific notation
- 9.140 × 10^2
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
Three-foot gauge trades some of two-foot's flexibility for capacity, and both were chosen for terrain rather than tradition.
View 610 →Other connections
- is associated with610
why?
Strength 0.50, confidence "high".
Technology & computing
914 mm, nominally three feet, was extensively used in North American mountain railroads and in Irish light railways, offering greater capacity than two-foot gauge at moderate construction cost.
DocumentedTechnology & computingGeography: United States and Ireland principallyPeriod: 19th century–
Common questions
Is 914 a prime number?
No, 914 is not prime.
What are the factors of 914?
The factors of 914 are 1, 2, 457, 914.
What is 914 in Roman numerals?
914 in Roman numerals is CMXIV.
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