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Such a number is algebraic and can be expressed as the sum of a rational number and the square root of a rational number. Constructible number: A number representing a length that can be constructed using a compass and straightedge. Constructible numbers form a subfield of the field of algebraic numbers, and include the quadratic surds.
An integer may be regarded as a real number that can be written without a fractional component. For example, 21, 4, 0, and −2048 are integers, while 9.75, 5 + 1 / 2 , 5/4, and √ 2 are not. [8] The integers form the smallest group and the smallest ring containing the natural numbers.
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.
Sometimes, the whole numbers are the natural numbers plus zero. In other cases, ... The smallest group containing the natural numbers is the integers.
12341 = tetrahedral number [44] 12345 = smallest whole number containing all numbers from 1 to 5; 12407 = cited on Q.I. as the smallest uninteresting positive integer regarding arithmetical mathematics [notes 1] [60] 12421 = palindromic prime [41] 12496 = smallest sociable number; 12500 = 2 2 ×5 5 [61] 12529 = square pyramidal number [38 ...
A list of articles about numbers (not about numerals). Topics include powers of ten, notable integers, prime and cardinal numbers, and the myriad system.
So, = 1 and 1 is the smallest number that is greater than all 0.9, 0. ... as a number in its own right and to dealing with the set of natural numbers as a whole. ...
2520 is: . the smallest number divisible by all integers from one to ten, i.e., it is their least common multiple.; half of 7! (), meaning 7 factorial, or the product of five consecutive numbers, namely .