1659
1659 is the year the longest continuous temperature record begins.
- Odd
- Composite
Where 1659 fits
Why 1659 is special
The Central England Temperature series runs monthly from 1659 and is the longest instrumental climate record in the world. It exists because individuals kept recording without being asked to.
Factors & digit properties
- Divisors (8)
- 1, 3, 7, 21, 79, 237, 553, 1659
- Prime factorisation
- 3 × 7 × 79
- Digit sum
- 21
- Digital root
- 3
Representations
- Decimal
- 1659
- Binary
- 11001111011
- Octal
- 3173
- Hexadecimal
- 67b
- Roman numeral
- MDCLIX
- Scientific notation
- 1.659 × 10^3
Other mathematical patterns
- Deficient number
- Harshad (Niven) number
- Lucky number (mathematical sieve)
Related numbers & connections
The Central England Temperature series begins in 1659 and Fahrenheit published his scale in 1724 — a continuous record predating the standard instrument used to extend it.
View 1724 →Other connections
- is associated with1724
why?
Strength 0.50, confidence "high".
Science
The Central England Temperature series has run monthly since 1659, assembled from private and institutional records. No other instrumental climate series extends nearly as far back.
DocumentedScienceGeography: EnglandPeriod: from 1659
Common questions
Is 1659 a prime number?
No, 1659 is not prime.
What are the factors of 1659?
The factors of 1659 are 1, 3, 7, 21, 79, 237, 553, 1659.
What is 1659 in Roman numerals?
1659 in Roman numerals is MDCLIX.
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