1241
1241 is the year Mongol armies reached central Europe.
- Odd
- Composite
Where 1241 fits
Why 1241 is special
They defeated Polish and Hungarian forces within two days of each other and then withdrew on news of the Great Khan's death. Europe was spared by a succession crisis rather than by any defence.
Factors & digit properties
- Divisors (4)
- 1, 17, 73, 1241
- Prime factorisation
- 17 × 73
- Digit sum
- 8
- Digital root
- 8
Representations
- Decimal
- 1241
- Binary
- 10011011001
- Octal
- 2331
- Hexadecimal
- 4d9
- Roman numeral
- MCCXLI
- Scientific notation
- 1.241 × 10^3
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
Mongol armies withdrew from Europe in 1241 on news of a Great Khan's death, and their invasions of Japan in 1274 were destroyed by typhoons. Both advances stopped for reasons unrelated to the defence.
View 1274 →Other connections
- contrasts with1274
why?
Strength 0.50, confidence "high".
History
Mongol forces destroyed European armies at Legnica and Mohi in April 1241 and then turned back when Ögedei Khan died. Nothing in Europe had stopped them.
DocumentedHistoryGeography: Poland and HungaryPeriod: 1241
Common questions
Is 1241 a prime number?
No, 1241 is not prime.
What are the factors of 1241?
The factors of 1241 are 1, 17, 73, 1241.
What is 1241 in Roman numerals?
1241 in Roman numerals is MCCXLI.
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