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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

    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 …

  3. 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 …

  4. Roman numerals | Chart, LIX, & Facts | Britannica

    Nov 30, 2025 · Roman numerals are a system of numerical notation based on the ancient Roman system. The symbols are I, V, X, L, C, D, and M, standing respectively for 1, 5, 10, 50, 100, …

  5. What Is 1? Definition, Facts & Examples for Kids - Vedantu

    Discover what the number 1 means with fun examples. Learn how to write 1 in words and boost your maths skills with Vedantu!

  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 …

  7. 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 …

  8. The number 1 for kids - Learning to count - Numbers for children …

    Educational video for children to learn the number 1. The little ones will learn how to trace number 1, how to pronounce it and also how to count with a series of super fun examples.

  9. About The Number 1 - numeraly.com

    The number 1 is unique in many ways, and holds a fascinating position in the world of mathematics, science, and culture. As the first whole number, it is the foundation for all other …

  10. 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.