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.
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
- Binary
- 10100011101
- Octal
- 2435
- Hexadecimal
- 51d
- Roman numeral
- MCCCIX
- Scientific notation
- 1.309 × 10^3
Other mathematical patterns
- Deficient number
- Happy number
- Lucky number (mathematical sieve)
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.
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