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  1. 1 - Wiktionary, the free dictionary

    Dec 9, 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 ultimately …

  2. 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 Indians, who …

  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. Number 1 - Curious Math Facts and Interesting Properties

    Explore the curious properties of number 1, an odd number which is uniquely neither prime nor composite. Includes mathematical info, prime factorization, divisors, bases and much more!

  5. 1 -- from Wolfram MathWorld

    Dec 3, 2025 · 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 that it is …

  6. 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 itself, …

  7. 1 - Definition, Meaning & Synonyms | Vocabulary.com

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

  8. 1 times table with games at Timestables.co.uk

    This is where you can practice the 1 times table by entering all the answers and then checking how many you got right. There are various ways the tables can be practiced.

  9. 1 Definition & Meaning - Merriam-Webster

    One John Doe made a speech. "Puma" and "cougar" are different names for one animal. The author and the main character are one and the same. : the first whole number above zero see Table of …

  10. 1 (number) - Simple English Wikipedia, the free encyclopedia

    1 (number) ... Chinese hand sign 0:01 Pronunciation of the number 1. One (1) is the first natural number, followed by two, then followed by three. The Roman numeral for one is I. Babylonian number 1