1943
1943 is the year of the Bengal famine.
- Odd
- Composite
Where 1943 fits
Why 1943 is special
Between two and three million people died in British-ruled Bengal. Crop failure was compounded by wartime policy — including the denial of boats and rice stocks and the refusal of imports — and responsibility remains actively contested by historians.
Same number, different meanings
How 1943 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Between two and three million people died in British-ruled Bengal. Crop failure was compounded by wartime policy — including the denial of boats and rice stocks and the refusal of imports — and responsibility remains actively contested by historians.
- Technology & computing
In 1943, Colossus was designed at Bletchley Park, the first programmable electronic digital computer (England).
- History
Between two and three million people died in the Bengal famine. Crop failure was compounded by wartime policy — denial of boats and rice stocks, and refusal of imports — and the allocation of responsibility remains actively disputed among historians.
1943 is part of
Factors & digit properties
- Divisors (4)
- 1, 29, 67, 1943
- Prime factorisation
- 29 × 67
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 1943
- Scientific notation
- 1.943 × 10^3
Roman numerals
M C M X L I I I
MCMXLIII uses the subtractive pair XL: ten before fifty — fifty minus ten.
Binary
1 1 1 1 0 0 1 0 1 1 1
1 × 1,024 + 1 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 1 × 1 = 1,943
Octal
3 6 2 7
3 × 512 + 6 × 64 + 2 × 8 + 7 × 1 = 1,943
Hexadecimal
7 9 7
7 × 256 + 9 × 16 + 7 × 1 = 1,943
Read as powers of two: 1,024 + 512 + 256 + 128 + 16 + 4 + 2 + 1 = 1,943.
In historical numeral systems
Egyptian
1 lotus, 9 coils of rope, 4 hobbles, 3 strokes
1 × 1,000 + 9 × 100 + 4 × 10 + 3 × 1 = 1,943. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
3 corner wedges + 2 vertical wedges (sixties place), 2 corner wedges + 3 vertical wedges (units place)
32 × 60 + 23 = 1943. 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
- Semiprime
Related numbers & connections
1943 is a year in the 20th century, in the 1940s.
The Bengal famine of 1943 and the Irish famine from 1845 both occurred under British administration with food being exported during the deaths. Responsibility in both cases remains actively contested.
View 1845 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- is associated with1845
why?
Strength 0.50, confidence "high".
Technology & computing
In 1943, Colossus was designed at Bletchley Park, the first programmable electronic digital computer (England).
DocumentedTechnology & computingGeography: EnglandPeriod: 1943
History
Between two and three million people died in the Bengal famine. Crop failure was compounded by wartime policy — denial of boats and rice stocks, and refusal of imports — and the allocation of responsibility remains actively disputed among historians.
DocumentedHistoryGeography: Bengal, British IndiaPeriod: 1943
Common questions
Is 1943 a prime number?
No, 1943 is not prime.
What are the factors of 1943?
The factors of 1943 are 1, 29, 67, 1943.
What is 1943 in Roman numerals?
1943 in Roman numerals is MCMXLIII. XL is subtractive: ten before fifty — fifty minus ten. Written additively it would be MDCCCCXXXXIII, 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