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

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 …

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 from …

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.

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!

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 usually …

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 Numbers. : …

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, for example: …

In scientific notation, it is written as 1 × 10 0. It has a total of 0 prime factors and 1 positive divisors. There is one positive integer (up to 1) that is relatively prime to 1. The prime factorization of 1 is 1. Since it has …

4 days 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