306
CWE-306 is missing authentication for a critical function.
- Even
- Composite
Where 306 fits
Why 306 is special
It is the weakness behind exposed administrative interfaces and unsecured databases: the check was not weak, it was absent.
Factors & digit properties
- Divisors (12)
- 1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306
- Prime factorisation
- 2 × 3^2 × 17
- Digit sum
- 9
- Digital root
- 9
Representations
- Decimal
- 306
- Scientific notation
- 3.060 × 10^2
Roman numerals
C C C V I
Binary
1 0 0 1 1 0 0 1 0
1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 306
Octal
4 6 2
4 × 64 + 6 × 8 + 2 × 1 = 306
Hexadecimal
1 3 2
1 × 256 + 3 × 16 + 2 × 1 = 306
Read as powers of two: 256 + 32 + 16 + 2 = 306.
In historical numeral systems
Egyptian
3 coils of rope, 6 strokes
3 × 100 + 6 × 1 = 306. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
5 vertical wedges (sixties place), 6 vertical wedges (units place)
5 × 60 + 6 = 306. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
tau, then stigma, marked as a numeral
tau-stigma + keraia
tau + stigma written in descending order and added — the letters carry their values wherever they stand, so this is addition, not place value.
Hebrew numerals
shin, then vav
shin-vav
shin (300) + vav (6) = 306, written in descending order.
Maya
3 bars (upper, twenties place) over 1 bar + 1 dot (lower, units place)
15 × 20 + 6 = 306. Places stack vertically with the smallest at the bottom, so the upper group is worth twenty times the lower.
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
- Abundant number
- Harshad (Niven) number
Related numbers & connections
Hard-coded credentials and missing authentication both leave a device open to anyone who knows the model rather than the owner.
View 798 →Technology & computing
CWE-306 covers functions performing sensitive operations without requiring proof of identity. It commonly appears in management interfaces and internal APIs assumed to be unreachable.
DocumentedTechnology & computingGeography: International — MITRE CWEPeriod: 2006–
Common questions
Is 306 a prime number?
No, 306 is not prime.
What are the factors of 306?
The factors of 306 are 1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306.
What is 306 in Roman numerals?
306 in Roman numerals is CCCVI.
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