1580
1580 is the year Drake completed his circumnavigation.
- Even
- Composite
Why 1580 is special
He was the second commander to sail around the world and the first to survive the voyage, Magellan having been killed part-way.
Factors & digit properties
- Divisors (12)
- 1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580
- Prime factorisation
- 2^2 × 5 × 79
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 1580
- Binary
- 11000101100
- Octal
- 3054
- Hexadecimal
- 62c
- Roman numeral
- MDLXXX
- Scientific notation
- 1.580 × 10^3
Other mathematical patterns
- Abundant number
Geography
Magellan's expedition circumnavigated first; Magellan himself did not. Drake completed the voyage in 1580 and returned alive, which had not previously happened.
DocumentedGeographyGeography: EnglandPeriod: 1577–1580
Common questions
Is 1580 a prime number?
No, 1580 is not prime.
What are the factors of 1580?
The factors of 1580 are 1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580.
What is 1580 in Roman numerals?
1580 in Roman numerals is MDLXXX.
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