1378
1378 is the year the Western Schism began.
- Even
- Composite
Where 1378 fits
Why 1378 is special
Two and eventually three men simultaneously claimed to be pope, each with national backing. It lasted thirty-nine years and did more damage to papal authority than any external opponent had.
Same number, different meanings
How 1378 is understood across different contexts — never implying one meaning because of another.
- Mathematics
Two and eventually three men simultaneously claimed to be pope, each with national backing. It lasted thirty-nine years and did more damage to papal authority than any external opponent had.
- History
In 1378, rival popes were elected at Rome and Avignon, beginning the Western Schism (Europe).
- Religion & belief
The Western Schism produced rival popes in Rome and Avignon, later three at once, each recognised by different kingdoms. Resolving it required a church council to depose all claimants, which set a precedent about where authority ultimately sat.
1378 is part of
Factors & digit properties
- Divisors (8)
- 1, 2, 13, 26, 53, 106, 689, 1378
- Prime factorisation
- 2 × 13 × 53
- Digit sum
- 19
- Digital root
- 1
Representations
- Decimal
- 1378
- Scientific notation
- 1.378 × 10^3
Roman numerals
M C C C L X X V I I I
Binary
1 0 1 0 1 1 0 0 0 1 0
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 1 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 1,378
Octal
2 5 4 2
2 × 512 + 5 × 64 + 4 × 8 + 2 × 1 = 1,378
Hexadecimal
5 6 2
5 × 256 + 6 × 16 + 2 × 1 = 1,378
Read as powers of two: 1,024 + 256 + 64 + 32 + 2 = 1,378.
In historical numeral systems
Egyptian
1 lotus, 3 coils of rope, 7 hobbles, 8 strokes
1 × 1,000 + 3 × 100 + 7 × 10 + 8 × 1 = 1,378. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 2 vertical wedges (sixties place), 5 corner wedges + 8 vertical wedges (units place)
22 × 60 + 58 = 1378. 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
- Triangular number
- Deficient number
Related numbers & connections
1378 is a year in the 14th century, in the 1370s.
The Western Schism began in 1378 with two claimants; the Council of Pisa in 1409 tried to resolve it and produced a third.
View 1409 →Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
Other connections
- developed from1409
why?
Strength 0.50, confidence "high".
History
In 1378, rival popes were elected at Rome and Avignon, beginning the Western Schism (Europe).
DocumentedHistoryGeography: EuropePeriod: 1378In 1378, the Ciompi rising in Florence briefly gave the wool workers a share in government (Italy).
DocumentedHistoryGeography: ItalyPeriod: 1378
Religion & belief
The Western Schism produced rival popes in Rome and Avignon, later three at once, each recognised by different kingdoms. Resolving it required a church council to depose all claimants, which set a precedent about where authority ultimately sat.
DocumentedReligion & beliefGeography: Western EuropePeriod: 1378–1417
Common questions
Is 1378 a prime number?
No, 1378 is not prime.
What are the factors of 1378?
The factors of 1378 are 1, 2, 13, 26, 53, 106, 689, 1378.
What is 1378 in Roman numerals?
1378 in Roman numerals is MCCCLXXVIII.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 3 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026