339
The LM339 is a quad comparator.
- Odd
- Composite
Where 339 fits
Why 339 is special
Its open-collector output can drive a different voltage rail from its own supply, which is what makes it a convenient bridge between analogue sensing and digital logic.
Factors & digit properties
- Divisors (4)
- 1, 3, 113, 339
- Prime factorisation
- 3 × 113
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 339
- Scientific notation
- 3.390 × 10^2
Roman numerals
C C C X X X I X
CCCXXXIX uses the subtractive pair IX: one before ten — ten minus one.
Binary
1 0 1 0 1 0 0 1 1
1 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 1 × 1 = 339
Octal
5 2 3
5 × 64 + 2 × 8 + 3 × 1 = 339
Hexadecimal
1 5 3
1 × 256 + 5 × 16 + 3 × 1 = 339
Read as powers of two: 256 + 64 + 16 + 2 + 1 = 339.
In historical numeral systems
Egyptian
3 coils of rope, 3 hobbles, 9 strokes
3 × 100 + 3 × 10 + 9 × 1 = 339. 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), 3 corner wedges + 9 vertical wedges (units place)
5 × 60 + 39 = 339. Places are separated by a space on the tablet, with the higher place written first.
Greek (Ionic)
tau, then lambda, then theta, marked as a numeral
tau-lambda-theta + keraia
tau + lambda + theta 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 lamed, then tet
shin-lamed-tet
shin (300) + lamed (30) + tet (9) = 339, written in descending order.
Maya
3 bars + 1 dot (upper, twenties place) over 3 bars + 4 dots (lower, units place)
16 × 20 + 19 = 339. 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
- Deficient number
- Semiprime
- Lucky number (mathematical sieve)
Related numbers & connections
A comparator and an operational amplifier look similar and are not interchangeable: one is built to saturate and the other not to.
View 741 →Other connections
- is associated with741
why?
Strength 0.50, confidence "high".
Technology & computing
The LM339 contains four comparators with open-collector outputs, allowing wired-OR connection and level translation between supply rails.
DocumentedTechnology & computingPeriod: 1970s–
Common questions
Is 339 a prime number?
No, 339 is not prime.
What are the factors of 339?
The factors of 339 are 1, 3, 113, 339.
What is 339 in Roman numerals?
339 in Roman numerals is CCCXXXIX. IX is subtractive: one before ten — ten minus one. Written additively it would be CCCXXXVIIII, which Roman inscriptions used freely — the strict subtractive form is a later convention.
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