1035
RFC 1035 specifies how DNS messages are actually formatted.
- Odd
- Composite
Where 1035 fits
Why 1035 is special
Its 512-byte limit on UDP responses shaped the protocol for decades, because anything larger required falling back to TCP — which is why DNS-based attacks and extensions both centre on that number.
1035 is part of
Factors & digit properties
- Divisors (12)
- 1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035
- Prime factorisation
- 3^2 × 5 × 23
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 1035
- Binary
- 10000001011
- Octal
- 2013
- Hexadecimal
- 40b
- Roman numeral
- MXXXV
- Scientific notation
- 1.035 × 10^3
Other mathematical patterns
- Triangular number
- Deficient number
- Hexagonal number
- Harshad (Niven) number
Related numbers & connections
The 512-byte message limit set here shaped DNS for decades and is why EDNS had to exist.
RFC 1034 describes the Domain Name System's concepts and 1035 the message format, including the 512-byte limit that shaped DNS for decades.
View 1034 →Numbers Around Us
- appears inNumbers that make the internet work
why?
Strength 0.50, confidence "high".
Other connections
- developed from1034
why?
Strength 0.50, confidence "high".
Technology & computing
RFC 1035 capped UDP DNS responses at 512 bytes to fit the minimum guaranteed datagram. Amplification attacks, EDNS extensions and DNSSEC deployment problems all trace back to that one limit.
DocumentedTechnology & computingPeriod: 1987
Common questions
Is 1035 a prime number?
No, 1035 is not prime.
What are the factors of 1035?
The factors of 1035 are 1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035.
What is 1035 in Roman numerals?
1035 in Roman numerals is MXXXV.
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