1450
1450 is the approximate year Gutenberg's printing press began operating.
- Even
- Composite
Where 1450 fits
Why 1450 is special
Movable type existed in Korea and China centuries earlier; Gutenberg's contribution was the combination of metal type, oil-based ink and a press adapted from wine-making. Within fifty years Europe held millions of printed books where it had held thousands.
1450 is part of
Factors & digit properties
- Divisors (12)
- 1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450
- Prime factorisation
- 2 × 5^2 × 29
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 1450
- Scientific notation
- 1.450 × 10^3
Roman numerals
M C D L
MCDL uses the subtractive pair CD: a hundred before five hundred — five hundred minus a hundred.
Binary
1 0 1 1 0 1 0 1 0 1 0
1 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 1 × 2 + 0 × 1 = 1,450
Octal
2 6 5 2
2 × 512 + 6 × 64 + 5 × 8 + 2 × 1 = 1,450
Hexadecimal
5 a a
5 × 256 + a × 16 + a × 1 = 1,450
Read as powers of two: 1,024 + 256 + 128 + 32 + 8 + 2 = 1,450.
In historical numeral systems
Egyptian
1 lotus, 4 coils of rope, 5 hobbles
1 × 1,000 + 4 × 100 + 5 × 10 = 1,450. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Babylonian
2 corner wedges + 4 vertical wedges (sixties place), 1 corner wedge (units place)
24 × 60 + 10 = 1450. 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
- Harshad (Niven) number
Related numbers & connections
1450 is a year in the 15th century, in the 1450s.
The Mainz Psalter of 1457 is the first printed book naming its printer and date. Gutenberg's Bible, from around 1450, carries neither.
View 1457 →Technology & computing
Movable metal type was in use in Korea by the thirteenth century. Gutenberg's advance was a system — durable metal type, oil-based ink and a screw press — that made European printing economic. The distinction matters because the popular claim of invention is wrong in a specific way.
DocumentedTechnology & computingGeography: Mainz, Holy Roman EmpirePeriod: around 1450In 1450, Gutenberg's press was working at Mainz (Germany).
DocumentedTechnology & computingGeography: GermanyPeriod: 1450
Common questions
Is 1450 a prime number?
No, 1450 is not prime.
What are the factors of 1450?
The factors of 1450 are 1, 2, 5, 10, 25, 29, 50, 58, 145, 290, 725, 1450.
What is 1450 in Roman numerals?
1450 in Roman numerals is MCDL. CD is subtractive: a hundred before five hundred — five hundred minus a hundred. Written additively it would be MCCCCL, 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