1916
1916 is the year Einstein published the general theory of relativity.
- Even
- Composite
Where 1916 fits
Why 1916 is special
It described gravity as the curvature of spacetime rather than a force. Its prediction that starlight bends around the Sun was confirmed in 1919, which made Einstein internationally famous almost overnight.
Same number, different meanings
How 1916 is understood across different contexts — never implying one meaning because of another.
- Mathematics
It described gravity as the curvature of spacetime rather than a force. Its prediction that starlight bends around the Sun was confirmed in 1919, which made Einstein internationally famous almost overnight.
- History
In 1916, the battles of the Somme and Verdun were fought, and the Easter Rising took place in Dublin (Europe).
- Science
General relativity predicted that light passing the Sun would bend by a specific amount. Eddington's 1919 eclipse measurements matched it, and the confirmation turned a physicist into a public figure within weeks — an unusual trajectory for a field equation.
1916 is part of
Factors & digit properties
- Divisors (6)
- 1, 2, 4, 479, 958, 1916
- Prime factorisation
- 2^2 × 479
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 1916
- Scientific notation
- 1.916 × 10^3
Roman numerals
M C M X V I
MCMXVI uses the subtractive pair CM: a hundred before a thousand — a thousand minus a hundred.
Binary
1 1 1 0 1 1 1 1 1 0 0
1 × 1,024 + 1 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 1,916
Octal
3 5 7 4
3 × 512 + 5 × 64 + 7 × 8 + 4 × 1 = 1,916
Hexadecimal
7 7 c
7 × 256 + 7 × 16 + c × 1 = 1,916
Read as powers of two: 1,024 + 512 + 256 + 64 + 32 + 16 + 8 + 4 = 1,916.
In historical numeral systems
Egyptian
1 lotus, 9 coils of rope, 1 hobble, 6 strokes
1 × 1,000 + 9 × 100 + 1 × 10 + 6 × 1 = 1,916. 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), 5 corner wedges + 6 vertical wedges (units place)
31 × 60 + 56 = 1916. 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
Related numbers & connections
1916 is a year in the 20th century, in the 1910s.
Special relativity in 1905 and the general theory in 1916. The second extended the first to gravitation and accelerated frames, and took Einstein eleven years.
View 1905 →History
In 1916, the battles of the Somme and Verdun were fought, and the Easter Rising took place in Dublin (Europe).
DocumentedHistoryGeography: EuropePeriod: 1916
Science
General relativity predicted that light passing the Sun would bend by a specific amount. Eddington's 1919 eclipse measurements matched it, and the confirmation turned a physicist into a public figure within weeks — an unusual trajectory for a field equation.
DocumentedSciencePeriod: 1916
Common questions
Is 1916 a prime number?
No, 1916 is not prime.
What are the factors of 1916?
The factors of 1916 are 1, 2, 4, 479, 958, 1916.
What is 1916 in Roman numerals?
1916 in Roman numerals is MCMXVI. CM is subtractive: a hundred before a thousand — a thousand minus a hundred. Written additively it would be MDCCCCXVI, 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