7748
RFC 7748 defines Curve25519 and Curve448.
- Even
- Composite
Where 7748 fits
Why 7748 is special
The curves were chosen so that implementations are hard to get subtly wrong, which is a different design goal from maximising theoretical strength.
Factors & digit properties
- Divisors (12)
- 1, 2, 4, 13, 26, 52, 149, 298, 596, 1937, 3874, 7748
- Prime factorisation
- 2^2 × 13 × 149
- Digit sum
- 26
- Digital root
- 8
Representations
- Decimal
- 7748
- Binary
- 1111001000100
- Octal
- 17104
- Hexadecimal
- 1e44
- Scientific notation
- 7.748 × 10^3
Other mathematical patterns
- Deficient number
- Harshad (Niven) number
Related numbers & connections
Ed25519 signatures are built on the curves this document specifies, chosen to be hard to implement incorrectly.
View 8032 →Technology & computing
RFC 7748 specifies elliptic curves for security, designed with parameters that avoid several classes of implementation error including invalid curve and timing attacks.
DocumentedTechnology & computingGeography: International — IETFPeriod: 2016
Common questions
Is 7748 a prime number?
No, 7748 is not prime.
What are the factors of 7748?
The factors of 7748 are 1, 2, 4, 13, 26, 52, 149, 298, 596, 1937, 3874, 7748.
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