71
Học thuậtThân thiện
Definition
- Adjective:
- Being one more than seventy: The number 71 is the natural number that follows 70 and precedes 72. It is an odd number and a prime number.
Usage
- The word "71" is used as a numeral adjective to describe a quantity or position in a sequence that is exactly one greater than seventy.
- It is typically written with digits ("71") rather than spelled out ("seventy-one") in most contexts, except in formal writing or when beginning a sentence.
Examples
- Adjective:
- There are 71 pages in this document. (The quantity of pages is one more than seventy.)
- She finished in 71st place in the marathon. (Her ordinal position was one after seventieth.)
- The temperature reached 71 degrees Fahrenheit. (The specific measurement was one degree above seventy.)
Advanced Usage
- As a prime number: In mathematics, 71 is often cited as an example of a prime number (a number greater than 1 with no positive divisors other than 1 and itself).
- 71 is a prime number, divisible only by 1 and 71.
- In historical or cultural references: The number can be used to denote a specific year (e.g., 1971) or model number.
- The classic car was a '71 Mustang. (Referring to the 1971 model year.)
Variants and Related Words
- Seventy-one: The word form of the numeral.
- LXXI: The Roman numeral representation.
- 71st: The ordinal form (seventy-first), used to indicate position in a sequence.
Synonyms
- Seventy-one (adj): The literal synonym in word form.
- LXXI (adj): The synonym in Roman numerals.
Antonyms
- There is no direct antonym for a specific number. Conceptually, any number that is not 71 could be considered different, but common opposites in sequence might be:
- 70 (seventy): The preceding integer.
- 72 (seventy-two): The following integer.
Related Phrases and Idioms
- There is no specific idiom for the number 71. Numbers are sometimes used idiomatically (e.g., "dressed to the nines"), but "71" does not commonly feature in English idioms.
Adjective
- being one more than seventy