6809
The 6809 is Motorola's most sophisticated 8-bit processor.
- Odd
- Composite
Where 6809 fits
Why 6809 is special
Its position-independent addressing made it a favourite for writing operating systems, and it is often described as the best 8-bit design that lost commercially.
Factors & digit properties
- Divisors (4)
- 1, 11, 619, 6809
- Prime factorisation
- 11 × 619
- Digit sum
- 23
- Digital root
- 5
Representations
- Decimal
- 6809
- Binary
- 1101010011001
- Octal
- 15231
- Hexadecimal
- 1a99
- Scientific notation
- 6.809 × 10^3
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
The 6809 was the more sophisticated 8-bit design and the 6502 the far more successful one, which is a recurring pattern in the industry.
View 6502 →Technology & computing
The 6809 offers two index registers, two stack pointers and position-independent addressing modes. It was used in the Dragon 32, the TRS-80 Color Computer and Vectrex, but sold far below the 6502 and Z80.
DocumentedTechnology & computingPeriod: 1978–
Common questions
Is 6809 a prime number?
No, 6809 is not prime.
What are the factors of 6809?
The factors of 6809 are 1, 11, 619, 6809.
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