8375
RFC 8375 reserves the home.arpa domain.
- Odd
- Composite
Where 8375 fits
Why 8375 is special
It gave home networks a name that cannot be sold or hijacked, after .local and various invented suffixes had all caused collisions.
Factors & digit properties
- Divisors (8)
- 1, 5, 25, 67, 125, 335, 1675, 8375
- Prime factorisation
- 5^3 × 67
- Digit sum
- 23
- Digital root
- 5
Representations
- Decimal
- 8375
- Scientific notation
- 8.375 × 10^3
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 0 0 0 0 1 0 1 1 0 1 1 1
1 × 8,192 + 0 × 4,096 + 0 × 2,048 + 0 × 1,024 + 0 × 512 + 0 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 8,375
Octal
2 0 2 6 7
2 × 4,096 + 0 × 512 + 2 × 64 + 6 × 8 + 7 × 1 = 8,375
Hexadecimal
2 0 b 7
2 × 4,096 + 0 × 256 + b × 16 + 7 × 1 = 8,375
Read as powers of two: 8,192 + 128 + 32 + 16 + 4 + 2 + 1 = 8,375.
In historical numeral systems
Egyptian
8 lotuses, 3 coils of rope, 7 hobbles, 5 strokes
8 × 1,000 + 3 × 100 + 7 × 10 + 5 × 1 = 8,375. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Deficient number
Related numbers & connections
Both give home networks something they can use without registration: an address range and a domain name.
View 3927 →Other connections
- is associated with3927
why?
Strength 0.50, confidence "high".
Technology & computing
RFC 8375 designates home.arpa as the special-use domain for residential networks, resolving conflicts caused by ad hoc use of unregistered top-level names.
DocumentedTechnology & computingGeography: International — IETFPeriod: 2018
Common questions
Is 8375 a prime number?
No, 8375 is not prime.
What are the factors of 8375?
The factors of 8375 are 1, 5, 25, 67, 125, 335, 1675, 8375.
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: 15 July 2026