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  1. 1 - Wikipedia

    1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers.

  2. 1 - Wiktionary, the free dictionary

    Oct 5, 2025 · Tenth century “West Arabic” variation of the Nepali form of Hindu-Arabic numerals (compare Devanagari script १ (1, “éka”)), possibly influenced by Roman numeral Ⅰ, both …

  3. The number one - Britannica

    The number 1 symbolized unity and the origin of all things, since all other numbers can be created from 1 by adding enough copies of it. For example, 7 = 1 + 1 + 1 + 1 + 1 + 1 + 1.

  4. 1 (number) - New World Encyclopedia

    The glyph used today in the Western world to represent the number 1, a vertical line, often with a serif at the top and sometimes a short horizontal line at the bottom, traces its roots back to the …

  5. 1 (number) | Math Wiki | Fandom

    1 is the Hindu-Arabic numeral for the number one (the unit). It is the smallest positive integer, and smallest natural number. 1 is the multiplicative identity, i.e. any number multiplied by 1 equals …

  6. Number 1 - Facts about the integer - Numbermatics

    Your guide to the number 1, an odd number which is uniquely neither prime nor composite. Mathematical info, prime factorization, fun facts and numerical data for STEM, education and fun.

  7. 1 -- from Wolfram MathWorld

    3 days ago · Although the number 1 used to be considered a prime number, it requires special treatment in so many definitions and applications involving primes greater than or equal to 2 …

  8. Properties of the number 1 - numberempire.com

    Properties of the number 1: factors, prime check, fibonacci check, bell number check, binary, octal, hexadecimal representations and more.

  9. 1 - Definition, Meaning & Synonyms | Vocabulary.com

    1 Add to list Definitions of 1 noun the smallest whole number or a numeral representing this number synonyms: I, ace, one, single, unity

  10. Is 1 a Prime Number | Is 1 a Prime or Composite Number?

    Is 1 a Prime Number? No, 1 is not a prime number. The number 1 has only 1 factor. For a number to be classified as a prime number, it should have exactly two factors. Since 1 has less than …