1357
1357 is a year in the 14th century. Peter I began a reign remembered for summary royal justice and the cult of Ines de Castro (Portugal).
- Odd
- Composite
Where 1357 fits
Why 1357 is special
1357 has a profile because of what happened in it rather than because of any property of the number: Peter I began a reign remembered for summary royal justice and the cult of Ines de Castro (Portugal).
1357 is part of
Factors & digit properties
- Divisors (4)
- 1, 23, 59, 1357
- Prime factorisation
- 23 × 59
- Digit sum
- 16
- Digital root
- 7
Representations
- Decimal
- 1357
- Scientific notation
- 1.357 × 10^3
Roman numerals
M C C C L V I I
Binary
1 0 1 0 1 0 0 1 1 0 1
1 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 1 × 4 + 0 × 2 + 1 × 1 = 1,357
Octal
2 5 1 5
2 × 512 + 5 × 64 + 1 × 8 + 5 × 1 = 1,357
Hexadecimal
5 4 d
5 × 256 + 4 × 16 + d × 1 = 1,357
Read as powers of two: 1,024 + 256 + 64 + 8 + 4 + 1 = 1,357.
In historical numeral systems
Egyptian
1 lotus, 3 coils of rope, 5 hobbles, 7 strokes
1 × 1,000 + 3 × 100 + 5 × 10 + 7 × 1 = 1,357. 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), 3 corner wedges + 7 vertical wedges (units place)
22 × 60 + 37 = 1357. 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
- Semiprime
- Lucky number (mathematical sieve)
Related numbers & connections
1357 is a year in the 14th century, in the 1350s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1357, Peter I began a reign remembered for summary royal justice and the cult of Ines de Castro (Portugal).
DocumentedHistoryGeography: PortugalPeriod: 1357
Common questions
Is 1357 a prime number?
No, 1357 is not prime.
What are the factors of 1357?
The factors of 1357 are 1, 23, 59, 1357.
What is 1357 in Roman numerals?
1357 in Roman numerals is MCCCLVII.
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: 15 July 2026