1525
1525 is the year of the German Peasants' War.
- Odd
- Composite
Where 1525 fits
Why 1525 is special
Around 100,000 peasants were killed. Luther, whose ideas the rebels invoked, wrote a pamphlet urging the princes to slaughter them, which cost him support he never regained among the poor.
1525 is part of
Factors & digit properties
- Divisors (6)
- 1, 5, 25, 61, 305, 1525
- Prime factorisation
- 5^2 × 61
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 1525
- Scientific notation
- 1.525 × 10^3
Roman numerals
M D X X V
Binary
1 0 1 1 1 1 1 0 1 0 1
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 1 × 64 + 1 × 32 + 1 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 1,525
Octal
2 7 6 5
2 × 512 + 7 × 64 + 6 × 8 + 5 × 1 = 1,525
Hexadecimal
5 f 5
5 × 256 + f × 16 + 5 × 1 = 1,525
Read as powers of two: 1,024 + 256 + 128 + 64 + 32 + 16 + 4 + 1 = 1,525.
In historical numeral systems
Egyptian
1 lotus, 5 coils of rope, 2 hobbles, 5 strokes
1 × 1,000 + 5 × 100 + 2 × 10 + 5 × 1 = 1,525. 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), 2 corner wedges + 5 vertical wedges (units place)
25 × 60 + 25 = 1525. 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
1525 is a year in the 16th century, in the 1520s.
Peasants invoking Luther's teaching rose in 1525 and Luther called for their suppression, separating the Reformation's theological and social aims permanently.
View 1517 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- developed from1517
why?
Strength 0.50, confidence "high".
History
In 1525, the French king was captured at Pavia, where massed handgun fire decided a battle against heavy cavalry (Italy).
DocumentedHistoryGeography: ItalyPeriod: 1525Peasants invoking Luther's teaching rose in 1525 and Luther called for their suppression in the strongest terms. The Reformation's social and theological aims separated permanently at that point.
DocumentedHistoryGeography: GermanyPeriod: 1525
Common questions
Is 1525 a prime number?
No, 1525 is not prime.
What are the factors of 1525?
The factors of 1525 are 1, 5, 25, 61, 305, 1525.
What is 1525 in Roman numerals?
1525 in Roman numerals is MDXXV.
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