548
Port 548 carries Apple Filing Protocol.
- Even
- Composite
Where 548 fits
Why 548 is special
AFP was how Macs shared files for two decades before Apple moved to SMB. It was deprecated in 2019, which makes any device still answering on 548 a marker of equipment nobody has touched in years.
Factors & digit properties
- Divisors (6)
- 1, 2, 4, 137, 274, 548
- Prime factorisation
- 2^2 × 137
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 548
- Binary
- 1000100100
- Octal
- 1044
- Hexadecimal
- 224
- Roman numeral
- DXLVIII
- Scientific notation
- 5.480 × 10^2
Other mathematical patterns
- Deficient number
Related numbers & connections
NFS and AFP are the Unix and Apple approaches to sharing a filesystem over a network. Both trusted the client to state who the user was, and both have been superseded by SMB in practice.
View 2049 →Other connections
- is associated with2049
why?
Strength 0.50, confidence "high".
Technology & computing
Apple deprecated AFP in 2019 in favour of SMB. A machine still answering on port 548 is running software several major releases old, which makes the port a rough proxy for how well a network is maintained.
DocumentedTechnology & computing
Common questions
Is 548 a prime number?
No, 548 is not prime.
What are the factors of 548?
The factors of 548 are 1, 2, 4, 137, 274, 548.
What is 548 in Roman numerals?
548 in Roman numerals is DXLVIII.
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