1951
1951 is the year the first commercially available computer was delivered.
- Odd
- Prime
Where 1951 fits
Why 1951 is special
The Ferranti Mark 1 in Britain and UNIVAC I in the United States both shipped in 1951. UNIVAC's televised prediction of the 1952 US election result, which the network initially refused to broadcast because it disagreed with the polls, put computing in front of the public.
1951 is part of
Factors & digit properties
- Divisors (2)
- 1, 1951
- Prime factorisation
- 1951
- Digit sum
- 16
- Digital root
- 7
Representations
- Decimal
- 1951
- Binary
- 11110011111
- Octal
- 3637
- Hexadecimal
- 79f
- Roman numeral
- MCMLI
- Scientific notation
- 1.951 × 10^3
Other mathematical patterns
- Deficient number
- Twin prime
Related numbers & connections
Five years took computing from a rewired laboratory instrument to a product a customer could buy, and UNIVAC's televised election forecast put it in front of the public.
View 1946 →Other connections
- developed from1946
why?
Strength 0.50, confidence "high".
Technology & computing
The Ferranti Mark 1 and UNIVAC I both shipped in 1951. UNIVAC's forecast of the 1952 US election was initially withheld by the broadcaster because it contradicted the polls; it was right, and that moment put computing in front of the public.
DocumentedTechnology & computingPeriod: 1951
Common questions
Is 1951 a prime number?
Yes, 1951 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 1951?
The factors of 1951 are 1, 1951.
What is 1951 in Roman numerals?
1951 in Roman numerals is MCMLI.
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