1904
1904 is the year of the Entente Cordiale between Britain and France.
- Even
- Composite
Where 1904 fits
Why 1904 is special
Two countries that had fought each other for eight centuries settled their colonial disputes. It was not a military alliance, but it aligned them closely enough that Britain entered the First World War on France's side ten years later.
Same number, different meanings
How 1904 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Two countries that had fought each other for eight centuries settled their colonial disputes. It was not a military alliance, but it aligned them closely enough that Britain entered the First World War on France's side ten years later.
- History
In 1904, FIFA was founded in Paris by seven European associations (France).
- Technology & computing
In 1904, John Ambrose Fleming patented the thermionic valve, the first electronic component able to turn alternating current into direct (England).
1904 is part of
Factors & digit properties
- Divisors (20)
- 1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904
- Prime factorisation
- 2^4 × 7 × 17
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 1904
- Scientific notation
- 1.904 × 10^3
Roman numerals
M C M I V
MCMIV uses the subtractive pair IV: one before five — five minus one.
Binary
1 1 1 0 1 1 1 0 0 0 0
1 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 1,904
Octal
3 5 6 0
3 × 512 + 5 × 64 + 6 × 8 + 0 × 1 = 1,904
Hexadecimal
7 7 0
7 × 256 + 7 × 16 + 0 × 1 = 1,904
Read as powers of two: 1,024 + 512 + 256 + 64 + 32 + 16 = 1,904.
In historical numeral systems
Egyptian
1 lotus, 9 coils of rope, 4 strokes
1 × 1,000 + 9 × 100 + 4 × 1 = 1,904. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
3 corner wedges + 1 vertical wedge (sixties place), 4 corner wedges + 4 vertical wedges (units place)
31 × 60 + 44 = 1904. 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
- Abundant number
- Harshad (Niven) number
Related numbers & connections
1904 is a year in the 20th century, in the 1900s.
The Monroe Doctrine of 1823 asserted a position the United States could not enforce, relying on the Royal Navy; the Entente of 1904 realigned Britain toward France. Both are cases of stated policy resting on someone else's power.
View 1823 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- developed from1823
why?
Strength 0.50, confidence "high".
History
In 1904, FIFA was founded in Paris by seven European associations (France).
DocumentedHistoryGeography: FrancePeriod: 1904The Entente settled colonial disagreements and contained no obligation to fight. It nonetheless reoriented British policy toward France and against Germany, and the alignment held when war came in 1914.
DocumentedHistoryGeography: Britain and FrancePeriod: 1904
Technology & computing
In 1904, John Ambrose Fleming patented the thermionic valve, the first electronic component able to turn alternating current into direct (England).
DocumentedTechnology & computingGeography: EnglandPeriod: 1904
Common questions
Is 1904 a prime number?
No, 1904 is not prime.
What are the factors of 1904?
The factors of 1904 are 1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904.
What is 1904 in Roman numerals?
1904 in Roman numerals is MCMIV. IV is subtractive: one before five — five minus one. Written additively it would be MDCCCCIIII, 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: 3 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026