1550
1550 is the year of the Valladolid debate.
- Even
- Composite
Why 1550 is special
Spanish theologians formally argued whether indigenous Americans had souls and rights. That the question was debated at all is notable; that the practical outcome changed little is more so.
Factors & digit properties
- Divisors (12)
- 1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550
- Prime factorisation
- 2 × 5^2 × 31
- Digit sum
- 11
- Digital root
- 2
Representations
- Decimal
- 1550
- Binary
- 11000001110
- Octal
- 3016
- Hexadecimal
- 60e
- Roman numeral
- MDL
- Scientific notation
- 1.550 × 10^3
Other mathematical patterns
- Deficient number
Law & regulation
The Valladolid debate of 1550 formally considered the rights of indigenous Americans. Las Casas argued for their full humanity and the encomienda system continued substantially unchanged.
DocumentedLaw & regulationGeography: SpainPeriod: 1550–1551
Common questions
Is 1550 a prime number?
No, 1550 is not prime.
What are the factors of 1550?
The factors of 1550 are 1, 2, 5, 10, 25, 31, 50, 62, 155, 310, 775, 1550.
What is 1550 in Roman numerals?
1550 in Roman numerals is MDL.
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