1572
Tycho's supernova of 1572 helped end the idea of an unchanging heavens.
- Even
- Composite
Where 1572 fits
Why 1572 is special
Aristotelian cosmology held that the realm beyond the Moon never changed. Tycho Brahe showed the new star had no measurable parallax and so lay far beyond the Moon, which meant the unchangeable heavens had changed.
1572 connects to:
- historical years — appears in
- 1604 — contrasts with
Same number, different meanings
How 1572 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Aristotelian cosmology held that the realm beyond the Moon never changed. Tycho Brahe showed the new star had no measurable parallax and so lay far beyond the Moon, which meant the unchangeable heavens had changed.
- History
In 1572, the St Bartholomew's Day massacre killed thousands of Huguenots (France).
- Science
Tycho measured the 1572 star's parallax, found none, and concluded it lay beyond the Moon. That single measurement contradicted the doctrine that the heavens above the Moon were immutable, which mattered more than the star itself.
1572 is part of
Factors & digit properties
- Divisors (12)
- 1, 2, 3, 4, 6, 12, 131, 262, 393, 524, 786, 1572
- Prime factorisation
- 2^2 × 3 × 131
- Digit sum
- 15
- Digital root
- 6
Representations
- Decimal
- 1572
- Scientific notation
- 1.572 × 10^3
Roman numerals
M D L X X I I
Binary
1 1 0 0 0 1 0 0 1 0 0
1 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 1 × 4 + 0 × 2 + 0 × 1 = 1,572
Octal
3 0 4 4
3 × 512 + 0 × 64 + 4 × 8 + 4 × 1 = 1,572
Hexadecimal
6 2 4
6 × 256 + 2 × 16 + 4 × 1 = 1,572
Read as powers of two: 1,024 + 512 + 32 + 4 = 1,572.
In historical numeral systems
Egyptian
1 lotus, 5 coils of rope, 7 hobbles, 2 strokes
1 × 1,000 + 5 × 100 + 7 × 10 + 2 × 1 = 1,572. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 6 vertical wedges (sixties place), 1 corner wedge + 2 vertical wedges (units place)
26 × 60 + 12 = 1572. 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
- Abundant number
- Happy number
Related numbers & connections
1572 is a year in the 16th century, in the 1570s.
Tycho's star and Kepler's star, 32 years apart, are the last two naked-eye supernovae recorded in our galaxy. Both arrived precisely when European astronomy was equipped to argue about what they meant.
View 1604 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- contrasts with1604
why?
Strength 0.50, confidence "high".
History
In 1572, the St Bartholomew's Day massacre killed thousands of Huguenots (France).
DocumentedHistoryGeography: FrancePeriod: 1572
Science
Tycho measured the 1572 star's parallax, found none, and concluded it lay beyond the Moon. That single measurement contradicted the doctrine that the heavens above the Moon were immutable, which mattered more than the star itself.
DocumentedSciencePeriod: 1572
Common questions
Is 1572 a prime number?
No, 1572 is not prime.
What are the factors of 1572?
The factors of 1572 are 1, 2, 3, 4, 6, 12, 131, 262, 393, 524, 786, 1572.
What is 1572 in Roman numerals?
1572 in Roman numerals is MDLXXII.
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