1418
1418 is a year in the 15th century. Portuguese navigators reached Porto Santo, beginning the settlement of the Atlantic islands (Portugal).
- Even
- Composite
Where 1418 fits
Why 1418 is special
1418 has a profile because of what happened in it rather than because of any property of the number: Portuguese navigators reached Porto Santo, beginning the settlement of the Atlantic islands (Portugal).
1418 is part of
Factors & digit properties
- Divisors (4)
- 1, 2, 709, 1418
- Prime factorisation
- 2 × 709
- Digit sum
- 14
- Digital root
- 5
Representations
- Decimal
- 1418
- Scientific notation
- 1.418 × 10^3
Roman numerals
M C D X V I I I
MCDXVIII uses the subtractive pair CD: a hundred before five hundred — five hundred minus a hundred.
Binary
1 0 1 1 0 0 0 1 0 1 0
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 1,418
Octal
2 6 1 2
2 × 512 + 6 × 64 + 1 × 8 + 2 × 1 = 1,418
Hexadecimal
5 8 a
5 × 256 + 8 × 16 + a × 1 = 1,418
Read as powers of two: 1,024 + 256 + 128 + 8 + 2 = 1,418.
In historical numeral systems
Egyptian
1 lotus, 4 coils of rope, 1 hobble, 8 strokes
1 × 1,000 + 4 × 100 + 1 × 10 + 8 × 1 = 1,418. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 3 vertical wedges (sixties place), 3 corner wedges + 8 vertical wedges (units place)
23 × 60 + 38 = 1418. 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
- Semiprime
Related numbers & connections
1418 is a year in the 15th century, in the 1410s.
Numbers Around Us
- appears inHistorical years
why?
Strength 0.50, confidence "high".
History
In 1418, Portuguese navigators reached Porto Santo, beginning the settlement of the Atlantic islands (Portugal).
DocumentedHistoryGeography: PortugalPeriod: 1418
Common questions
Is 1418 a prime number?
No, 1418 is not prime.
What are the factors of 1418?
The factors of 1418 are 1, 2, 709, 1418.
What is 1418 in Roman numerals?
1418 in Roman numerals is MCDXVIII. CD is subtractive: a hundred before five hundred — five hundred minus a hundred. Written additively it would be MCCCCXVIII, 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: 1 reviewer-confirmed record, sourced and reviewed before publication.
Last reviewed: 15 July 2026