1749
1749 is the year Buffon began publishing his natural history.
- Odd
- Composite
Where 1749 fits
Why 1749 is special
It ran to 36 volumes, proposed an Earth far older than biblical chronology allowed, and suggested species change over time. Darwin acknowledged him as a predecessor.
Factors & digit properties
- Divisors (8)
- 1, 3, 11, 33, 53, 159, 583, 1749
- Prime factorisation
- 3 × 11 × 53
- Digit sum
- 21
- Digital root
- 3
Representations
- Decimal
- 1749
- Binary
- 11011010101
- Octal
- 3325
- Hexadecimal
- 6d5
- Roman numeral
- MDCCXLIX
- Scientific notation
- 1.749 × 10^3
Other mathematical patterns
- Deficient number
- Lucky number (mathematical sieve)
Related numbers & connections
A fossil bone described in 1686 was read as a giant human's because extinction was not a available concept. Buffon's natural history from 1749 proposed an Earth old enough for species to change.
View 1686 →Other connections
- contrasts with1686
why?
Strength 0.50, confidence "high".
Science
Buffon estimated the Earth's age at tens of thousands of years from cooling experiments, against a biblical chronology of about six thousand. He also raised species change, a century before Darwin.
DocumentedScienceGeography: FrancePeriod: 1749
Common questions
Is 1749 a prime number?
No, 1749 is not prime.
What are the factors of 1749?
The factors of 1749 are 1, 3, 11, 33, 53, 159, 583, 1749.
What is 1749 in Roman numerals?
1749 in Roman numerals is MDCCXLIX.
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