1771
1771 is the year the Encyclopaedia Britannica was completed.
- Odd
- Composite
Where 1771 fits
Why 1771 is special
It ran to three volumes and was compiled in Edinburgh. It remained in print for 244 years, ending its print edition in 2012 after the reference market moved online.
1771 is part of
Factors & digit properties
- Divisors (8)
- 1, 7, 11, 23, 77, 161, 253, 1771
- Prime factorisation
- 7 × 11 × 23
- Digit sum
- 16
- Digital root
- 7
Representations
- Decimal
- 1771
- Binary
- 11011101011
- Octal
- 3353
- Hexadecimal
- 6eb
- Roman numeral
- MDCCLXXI
- Scientific notation
- 1.771 × 10^3
Other mathematical patterns
- Palindromic number
- Deficient number
- Happy number
- Lucky number (mathematical sieve)
Related numbers & connections
The Encyclopédie began in 1751 and Britannica was completed in 1771. One was suppressed twice by church and state; the other ran in print for 244 years.
View 1751 →Other connections
- developed from1751
why?
Strength 0.50, confidence "high".
Culture
Britannica's first edition was finished in 1771 and the print edition ended in 2012. Few products of any kind have a continuous production run of that length, and what displaced it took about a decade.
DocumentedCultureGeography: ScotlandPeriod: 1771
Common questions
Is 1771 a prime number?
No, 1771 is not prime.
What are the factors of 1771?
The factors of 1771 are 1, 7, 11, 23, 77, 161, 253, 1771.
What is 1771 in Roman numerals?
1771 in Roman numerals is MDCCLXXI.
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