1953
1953 is the year the double-helix structure of DNA was published.
- Odd
- Composite
Where 1953 fits
Why 1953 is special
Watson and Crick's model rested on X-ray diffraction data produced by Rosalind Franklin, shown to them without her knowledge. Franklin died in 1958 and the Nobel Prize was awarded in 1962; the prize is not given posthumously, which is a rule rather than a judgement about contribution.
1953 is part of
Factors & digit properties
- Divisors (12)
- 1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953
- Prime factorisation
- 3^2 × 7 × 31
- Digit sum
- 18
- Digital root
- 9
Representations
- Decimal
- 1953
- Binary
- 11110100001
- Octal
- 3641
- Hexadecimal
- 7a1
- Roman numeral
- MCMLIII
- Scientific notation
- 1.953 × 10^3
Other mathematical patterns
- Triangular number
- Deficient number
Related numbers & connections
Darwin described inheritance working without knowing its mechanism; the double helix supplied the mechanism ninety-four years later.
View 1859 →Two years in which a small number of papers reset a field — Einstein's four in 1905, the double-helix model in 1953.
View 1905 →Science
Watson and Crick's double-helix model depended on X-ray diffraction images produced by Rosalind Franklin, which were shown to them without her knowledge. Franklin died in 1958 and the Nobel Prize followed in 1962; the prize is not awarded posthumously, which is a rule of the award rather than a verdict on contribution.
DocumentedSciencePeriod: 1953
Common questions
Is 1953 a prime number?
No, 1953 is not prime.
What are the factors of 1953?
The factors of 1953 are 1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953.
What is 1953 in Roman numerals?
1953 in Roman numerals is MCMLIII.
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