
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.
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 …
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, …
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 …
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!
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 …
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!
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 …
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 …
1 - Definition, Meaning & Synonyms | Vocabulary.com
1 Definitions of 1 noun the smallest whole number or a numeral representing this number synonyms: I, ace, one, single, unity