8333
Port 8333 is the Bitcoin network's peer-to-peer port.
- Odd
- Composite
Where 8333 fits
Why 8333 is special
Nodes connect to each other on 8333 to relay transactions and blocks. There is no central server to shut down, which is the property the design exists for and the reason the network has run continuously since 2009.
8333 is part of
Factors & digit properties
- Divisors (4)
- 1, 13, 641, 8333
- Prime factorisation
- 13 × 641
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 8333
- Binary
- 10000010001101
- Octal
- 20215
- Hexadecimal
- 208d
- Scientific notation
- 8.333 × 10^3
Other mathematical patterns
- Deficient number
- Happy number
- Semiprime
Related numbers & connections
Bitcoin nodes gossip over port 8333, and the network started in 2009 with a genesis block carrying a newspaper headline about bank bailouts.
View 2009 →Other connections
- is associated with2009
why?
Strength 0.50, confidence "high".
Technology & computing
Bitcoin's peer-to-peer network uses port 8333. A node connecting outward can operate behind a firewall, but only nodes accepting inbound connections on it relay to new peers.
DocumentedTechnology & computingPeriod: 2009–Bitcoin nodes gossip transactions and blocks to each other over port 8333 with no coordinating server. Whether the design is worthwhile is argued about; that it has run without central infrastructure since 2009 is not.
DocumentedTechnology & computing
Common questions
Is 8333 a prime number?
No, 8333 is not prime.
What are the factors of 8333?
The factors of 8333 are 1, 13, 641, 8333.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 3 August 2026