1435
Standard railway gauge is 1,435 mm between the rails.
- Odd
- Composite
Where 1435 fits
Why 1435 is special
About 55 percent of the world's railways use it, which is why through trains cross most European borders and stop at others. The figure is usually traced to early English tramways and is stated in imperial units as 4 feet 8.5 inches — an oddly specific measurement that no one designed as such.
Factors & digit properties
- Divisors (8)
- 1, 5, 7, 35, 41, 205, 287, 1435
- Prime factorisation
- 5 × 7 × 41
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 1435
- Binary
- 10110011011
- Octal
- 2633
- Hexadecimal
- 59b
- Roman numeral
- MCDXXXV
- Scientific notation
- 1.435 × 10^3
Other mathematical patterns
- Deficient number
- Lucky number (mathematical sieve)
Related numbers & connections
Cape gauge is cheaper to build through mountains and permanently slower to run on; standard gauge is the international default. Early cost decisions constrain networks for a century.
View 1067 →Other connections
- contrasts with1067
why?
Strength 0.50, confidence "high".
- contrasts with1524
why?
Strength 0.50, confidence "high".
- is associated with1935
why?
Strength 0.50, confidence "high".
- is associated with1825
why?
Strength 0.50, confidence "high".
- is associated with2768
why?
Strength 0.50, confidence "high".
- contrasts with610
why?
Strength 0.50, confidence "high".
- contrasts with1668
why?
Strength 0.50, confidence "high".
Technology & computing
Standard gauge is 1,435 mm, used by about 55 percent of railways worldwide, which is why some borders can be crossed by through train and others require changing. In imperial units it is 4 feet 8.5 inches — a figure nobody chose as such, inherited from early English tramway practice.
DocumentedTechnology & computing
Common questions
Is 1435 a prime number?
No, 1435 is not prime.
What are the factors of 1435?
The factors of 1435 are 1, 5, 7, 35, 41, 205, 287, 1435.
What is 1435 in Roman numerals?
1435 in Roman numerals is MCDXXXV.
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