1964
1964 is the year the US Civil Rights Act was signed.
- Even
- Composite
Where 1964 fits
Why 1964 is special
It outlawed segregation in public accommodations and discrimination in employment, and passed only after the longest filibuster in Senate history. The Voting Rights Act followed the next year, because the 1964 Act had left voting largely untouched.
Factors & digit properties
- Divisors (6)
- 1, 2, 4, 491, 982, 1964
- Prime factorisation
- 2^2 × 491
- Digit sum
- 20
- Digital root
- 2
Representations
- Decimal
- 1964
- Binary
- 11110101100
- Octal
- 3654
- Hexadecimal
- 7ac
- Roman numeral
- MCMLXIV
- Scientific notation
- 1.964 × 10^3
Other mathematical patterns
- Deficient number
Related numbers & connections
The Higgs boson was predicted in 1964 and confirmed in 2012 — forty-eight years, and a collider built substantially to look for it.
View 2012 →Law & regulation
The Civil Rights Act outlawed segregation in public accommodations and employment discrimination, passing after the longest filibuster in Senate history. It left voting rights largely untouched, which is precisely why a separate Voting Rights Act was needed the following year.
DocumentedLaw & regulationGeography: United StatesPeriod: 1964
Common questions
Is 1964 a prime number?
No, 1964 is not prime.
What are the factors of 1964?
The factors of 1964 are 1, 2, 4, 491, 982, 1964.
What is 1964 in Roman numerals?
1964 in Roman numerals is MCMLXIV.
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