1911
1911 is the year Amundsen reached the South Pole.
- Odd
- Composite
Where 1911 fits
Why 1911 is special
He arrived five weeks before Scott, who died on the return journey. Amundsen used dogs and skis and treated the trip as a logistics problem; the contrast between the two expeditions is a standard case study in planning.
Factors & digit properties
- Divisors (12)
- 1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911
- Prime factorisation
- 3 × 7^2 × 13
- Digit sum
- 12
- Digital root
- 3
Representations
- Decimal
- 1911
- Binary
- 11101110111
- Octal
- 3567
- Hexadecimal
- 777
- Roman numeral
- MCMXI
- Scientific notation
- 1.911 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
The Sherman Act of 1890 was written against industrial trusts and used first against unions; the 1911 Standard Oil breakup finally applied it as intended.
View 1890 →Geography
Amundsen reached the pole in 1911 by treating it as a supply and transport exercise — dogs, skis, depots laid in advance. Scott's party, using ponies and man-hauling, arrived later and died returning. The difference is method rather than fortune.
DocumentedGeographyGeography: AntarcticaPeriod: 1911
Common questions
Is 1911 a prime number?
No, 1911 is not prime.
What are the factors of 1911?
The factors of 1911 are 1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911.
What is 1911 in Roman numerals?
1911 in Roman numerals is MCMXI.
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: 3 August 2026