1386
1386 is the year Poland and Lithuania were joined by marriage.
- Even
- Composite
Where 1386 fits
Why 1386 is special
The union created the largest state in Europe and lasted, in evolving forms, for four centuries. Lithuania was the last part of Europe to adopt Christianity.
Factors & digit properties
- Divisors (24)
- 1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386
- Prime factorisation
- 2 × 3^2 × 7 × 11
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 1386
- Binary
- 10101101010
- Octal
- 2552
- Hexadecimal
- 56a
- Roman numeral
- MCCCLXXXVI
- Scientific notation
- 1.386 × 10^3
Other mathematical patterns
- Abundant number
- Harshad (Niven) number
Related numbers & connections
Poland and Lithuania joined in 1386 and the Kalmar Union combined three Scandinavian kingdoms in 1397. Both created very large composite states by dynastic arrangement rather than conquest.
View 1397 →Poland and Lithuania united in 1386 and broke Teutonic power at Grunwald in 1410, one of the largest battles of medieval Europe.
View 1410 →History
Lithuania converted to Christianity as part of the 1386 union with Poland, later than anywhere else in Europe. The combined state became the continent's largest.
DocumentedHistoryGeography: Poland and LithuaniaPeriod: 1386
Common questions
Is 1386 a prime number?
No, 1386 is not prime.
What are the factors of 1386?
The factors of 1386 are 1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 33, 42, 63, 66, 77, 99, 126, 154, 198, 231, 462, 693, 1386.
What is 1386 in Roman numerals?
1386 in Roman numerals is MCCCLXXXVI.
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