1275
IEEE 1275 defines Open Firmware.
- Odd
- Composite
Where 1275 fits
Why 1275 is special
Boot firmware that runs Forth is unusual, and it is why a device could supply a driver that worked before any operating system had loaded.
1275 is part of
Factors & digit properties
- Divisors (12)
- 1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275
- Prime factorisation
- 3 × 5^2 × 17
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 1275
- Binary
- 10011111011
- Octal
- 2373
- Hexadecimal
- 4fb
- Roman numeral
- MCCLXXV
- Scientific notation
- 1.275 × 10^3
Other mathematical patterns
- Triangular number
- Deficient number
- Happy number
- Harshad (Niven) number
- Lucky number (mathematical sieve)
Related numbers & connections
Open Firmware and POSIX are both portability layers, one below the operating system and one above it.
View 1003 →Other connections
- is associated with1003
why?
Strength 0.50, confidence "high".
Technology & computing
IEEE 1275 specifies Open Firmware, a boot environment using Forth-based device drivers, used on SPARC, PowerPC Macintosh and OLPC systems.
DocumentedTechnology & computingGeography: International — IEEEPeriod: 1994–
Common questions
Is 1275 a prime number?
No, 1275 is not prime.
What are the factors of 1275?
The factors of 1275 are 1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275.
What is 1275 in Roman numerals?
1275 in Roman numerals is MCCLXXV.
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