- 2 - Wikipedia
2 (two) is a number, numeral and digit It is the natural number following 1 and preceding 3 It is the smallest and the only even prime number Because it forms the basis of a duality, it has religious and spiritual significance in many cultures The number 2 is the second natural number after 1
- 2 (number) - Simple English Wikipedia, the free encyclopedia
2 (Two; ˈ t uː ) is a number, numeral, and glyph It is the number after 1 and the number before 3 In Roman numerals, it is II
- 2 (number) - New World Encyclopedia
Powers of two are central to the concept of Mersenne primes, and important to computer science
- 2 - Wiktionary, the free dictionary
A West Arabic numeral, ultimately from Indic numerals (compare Devanagari २ (2)), from a cursive form of two lines to represent the number two See 2 § Evolution for more
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- 2 -- from Wolfram MathWorld
The number two (2) is the second positive integer and the first prime number It is even, and is the only even prime (the primes other than 2 are called the odd primes) The number 2 is also equal to its factorial since 2!=2 A quantity taken to the power 2 is said to be squared
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- Superscript Two Symbol (²)
This signifies that the variable x is raised to the power of 2, which means x is multiplied by itself
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