1510
1510 is the year the first portable timepieces appeared.
- Even
- Composite
Where 1510 fits
Why 1510 is special
Early watches were inaccurate to hours a day and were worn as jewellery rather than consulted for the time. Accuracy arrived two centuries later with the balance spring.
Same number, different meanings
How 1510 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Early watches were inaccurate to hours a day and were worn as jewellery rather than consulted for the time. Accuracy arrived two centuries later with the balance spring.
- History
In 1510, the Portuguese took Goa, which remained their Indian capital for four and a half centuries (South Asia).
- Technology & computing
Early portable clocks lost hours per day and had no minute hand. They signalled wealth rather than told the time, and only became genuinely useful after 1675.
1510 is part of
Factors & digit properties
- Divisors (8)
- 1, 2, 5, 10, 151, 302, 755, 1510
- Prime factorisation
- 2 × 5 × 151
- Digit sum
- 7
- Digital root
- 7
Representations
- Decimal
- 1510
- Scientific notation
- 1.510 × 10^3
Roman numerals
M D X
Binary
1 0 1 1 1 1 0 0 1 1 0
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 1 × 2 + 0 × 1 = 1,510
Octal
2 7 4 6
2 × 512 + 7 × 64 + 4 × 8 + 6 × 1 = 1,510
Hexadecimal
5 e 6
5 × 256 + e × 16 + 6 × 1 = 1,510
Read as powers of two: 1,024 + 256 + 128 + 64 + 32 + 4 + 2 = 1,510.
In historical numeral systems
Egyptian
1 lotus, 5 coils of rope, 1 hobble
1 × 1,000 + 5 × 100 + 1 × 10 = 1,510. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 5 vertical wedges (sixties place), 1 corner wedge (units place)
25 × 60 + 10 = 1510. Places are separated by a space on the tablet, with the higher place written first.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Deficient number
Related numbers & connections
1510 is a year in the 16th century, in the 1510s.
Early portable timepieces from around 1510 lost hours a day and were worn as jewellery. Accuracy arrived with the pendulum clock in 1656.
View 1656 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- is associated with1656
why?
Strength 0.50, confidence "high".
History
In 1510, the Portuguese took Goa, which remained their Indian capital for four and a half centuries (South Asia).
DocumentedHistoryGeography: South AsiaPeriod: 1510
Technology & computing
Early portable clocks lost hours per day and had no minute hand. They signalled wealth rather than told the time, and only became genuinely useful after 1675.
DocumentedTechnology & computingGeography: GermanyPeriod: around 1510
Common questions
Is 1510 a prime number?
No, 1510 is not prime.
What are the factors of 1510?
The factors of 1510 are 1, 2, 5, 10, 151, 302, 755, 1510.
What is 1510 in Roman numerals?
1510 in Roman numerals is MDX.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026