1309
1309 is the year the papacy moved to Avignon.
- Odd
- Composite
Where 1309 fits
Why 1309 is special
Seven popes ruled from France over 68 years, under substantial French influence. Petrarch called it the Babylonian Captivity, and the return to Rome triggered the Western Schism.
Same number, different meanings
How 1309 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Seven popes ruled from France over 68 years, under substantial French influence. Petrarch called it the Babylonian Captivity, and the return to Rome triggered the Western Schism.
- History
In 1309, the papacy moved to Avignon, where it remained for sixty-eight years (France).
- Religion & belief
The papacy sat at Avignon from 1309 to 1377 under heavy French influence. The attempt to return to Rome produced rival claimants and the schism that followed.
1309 is part of
Factors & digit properties
- Divisors (8)
- 1, 7, 11, 17, 77, 119, 187, 1309
- Prime factorisation
- 7 × 11 × 17
- Digit sum
- 13
- Digital root
- 4
Representations
- Decimal
- 1309
- Scientific notation
- 1.309 × 10^3
Roman numerals
M C C C I X
MCCCIX uses the subtractive pair IX: one before ten — ten minus one.
Binary
1 0 1 0 0 0 1 1 1 0 1
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 0 × 32 + 1 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 1,309
Octal
2 4 3 5
2 × 512 + 4 × 64 + 3 × 8 + 5 × 1 = 1,309
Hexadecimal
5 1 d
5 × 256 + 1 × 16 + d × 1 = 1,309
Read as powers of two: 1,024 + 256 + 16 + 8 + 4 + 1 = 1,309.
In historical numeral systems
Egyptian
1 lotus, 3 coils of rope, 9 strokes
1 × 1,000 + 3 × 100 + 9 × 1 = 1,309. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 1 vertical wedge (sixties place), 4 corner wedges + 9 vertical wedges (units place)
21 × 60 + 49 = 1309. 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
- Happy number
- Lucky number (mathematical sieve)
Related numbers & connections
1309 is a year in the 14th century, in the 1300s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1309, the papacy moved to Avignon, where it remained for sixty-eight years (France).
DocumentedHistoryGeography: FrancePeriod: 1309
Religion & belief
The papacy sat at Avignon from 1309 to 1377 under heavy French influence. The attempt to return to Rome produced rival claimants and the schism that followed.
DocumentedReligion & beliefGeography: Avignon, FrancePeriod: 1309–1377
Common questions
Is 1309 a prime number?
No, 1309 is not prime.
What are the factors of 1309?
The factors of 1309 are 1, 7, 11, 17, 77, 119, 187, 1309.
What is 1309 in Roman numerals?
1309 in Roman numerals is MCCCIX. IX is subtractive: one before ten — ten minus one. Written additively it would be MCCCVIIII, which Roman inscriptions used freely — the strict subtractive form is a later convention.
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