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wikipedia.org
https://en.wikipedia.org/wiki/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.
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wiktionary.org
https://en.wiktionary.org/wiki/1
1 - Wiktionary, the free dictionary
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 using a single stroke to represent the number one.
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newworldencyclopedia.org
https://www.newworldencyclopedia.org/entry/1_(numb…
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 wrote 1 as a horizontal line, as is still the case in Chinese script.
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britannica.com
https://www.britannica.com/science/the-number-one
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.
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fandom.com
https://math.fandom.com/wiki/1_(number)
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, for example: a ⋅ 1 = a {\displaystyle a \cdot 1=a} and 1 × a = a {\displaystyle 1\times...
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vedantu.com
https://www.vedantu.com/maths/what-is-1
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!
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numbermatics.com
https://numbermatics.com/n/1/
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.
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wolfram.com
https://mathworld.wolfram.com/1.html
1 -- from Wolfram MathWorld
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 placed into a class of its own (Wells 1986, p. 31).
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merriam-webster.com
https://www.merriam-webster.com/dictionary/1
1 Definition & Meaning - Merriam-Webster
one 1 of 3 adjective ˈwən ˌwən 1 : being a single unit or thing see number 2 : being a certain unit or thing
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metanumbers.com
https://metanumbers.com/1
1 (Number)
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 a total of 0 prime factors, 1 is a composite number.