1724
1724 is the year Fahrenheit published his temperature scale.
- Even
- Composite
Where 1724 fits
Why 1724 is special
He set zero at the coldest temperature he could reproduce with a brine mixture and body temperature near 96. Both reference points were later adjusted, which is why neither lands on a round number now.
Same number, different meanings
How 1724 is understood across different contexts — never implying one meaning because of another.
- Mathematics
He set zero at the coldest temperature he could reproduce with a brine mixture and body temperature near 96. Both reference points were later adjusted, which is why neither lands on a round number now.
- Technology & computing
In 1724, Daniel Gabriel Fahrenheit published the temperature scale that carries his name (Low Countries).
- Science
Fahrenheit fixed zero using a brine freezing mixture and a second point at body temperature. Later recalibration against water's freezing and boiling points shifted both, leaving 32 and 212 rather than round figures.
1724 is part of
Factors & digit properties
- Divisors (6)
- 1, 2, 4, 431, 862, 1724
- Prime factorisation
- 2^2 × 431
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 1724
- Scientific notation
- 1.724 × 10^3
Roman numerals
M D C C X X I V
MDCCXXIV uses the subtractive pair IV: one before five — five minus one.
Binary
1 1 0 1 0 1 1 1 1 0 0
1 × 1,024 + 1 × 512 + 0 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 1,724
Octal
3 2 7 4
3 × 512 + 2 × 64 + 7 × 8 + 4 × 1 = 1,724
Hexadecimal
6 b c
6 × 256 + b × 16 + c × 1 = 1,724
Read as powers of two: 1,024 + 512 + 128 + 32 + 16 + 8 + 4 = 1,724.
In historical numeral systems
Egyptian
1 lotus, 7 coils of rope, 2 hobbles, 4 strokes
1 × 1,000 + 7 × 100 + 2 × 10 + 4 × 1 = 1,724. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 8 vertical wedges (sixties place), 4 corner wedges + 4 vertical wedges (units place)
28 × 60 + 44 = 1724. Places are separated by a space on the tablet, with the higher place written first.
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
- Happy number
Related numbers & connections
1724 is a year in the 18th century, in the 1720s.
The thermoscope of 1593 showed temperature changing without measuring it. Fahrenheit's scale in 1724 supplied the fixed points that turned comparison into measurement.
View 1593 →Technology & computing
In 1724, Daniel Gabriel Fahrenheit published the temperature scale that carries his name (Low Countries).
DocumentedTechnology & computingGeography: Low CountriesPeriod: 1724
Science
Fahrenheit fixed zero using a brine freezing mixture and a second point at body temperature. Later recalibration against water's freezing and boiling points shifted both, leaving 32 and 212 rather than round figures.
DocumentedScienceGeography: NetherlandsPeriod: 1724
Common questions
Is 1724 a prime number?
No, 1724 is not prime.
What are the factors of 1724?
The factors of 1724 are 1, 2, 4, 431, 862, 1724.
What is 1724 in Roman numerals?
1724 in Roman numerals is MDCCXXIV. IV is subtractive: one before five — five minus one. Written additively it would be MDCCXXIIII, 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: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026