600 (number)
600 (number) Six hundred is the natural number following five hundred and ninety-nine and ... hundred and one. It is a pronic number and a Harshad number. List of numbers — Integers << 0 100 ... the year AD, see 600. 601 prime number, centered pentagonal number 602 = 2 � ...
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Star number
Star number A star number, or centered 12-gonal number, is a centered figurate number that represents a centered hexagram, such as ... 73, 121, 181, 253, 337, 433, 541, 661, 793, 937, 1093, 1261, 1441, 1633, ...
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Normal number
Normal number A different topic is treated in the article titled normal number (computing). In mathematics, a normal number is, roughly speaking, a real number whose digits show a random distribution with ... than 1 and x is a real number. Consider the digit sequence of x ...
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Prime number twin   (translated from German)
Prime number twin Prime number twins are two Primzahlen , their distance 2 ... Table of contents Historical The term "prime number twin" became for the first time of ... Paul Staeckel used. Definition One calls prime number twins two prime numbers $p\_1$ is. The prime number $p\_2\; =\; p\_1\; +\; 2$ becomes ...
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Sierpinski number   (translated from German)
Sierpinski number Table of contents Sierpinski number One Sierpinski number (designated after the Polish mathematician Wac?aw Sierpi?ski ) is one natural, odd number k, their consequence from numbers of the ... 1 none Primzahlen contains. Gegenbeispiel The number of k=19 is not Sierpinski ...
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Zeisel number   (translated from German)
Zeisel number Those Zeisel number one is after the mathematician Helmut Zeisel designated number, those the product of at least three ... math>n \ge 1 a prime number result in, and both A and b ... for all p n constantly. The Zeisel number z then the product is $...$
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Carmichael number   (translated from German)
Carmichael number Those Carmichael number, designated after the mathematician Robert Daniel Carmichael ... special form is that Euler pseudo prime number, to which applies: A Carmichael number n is pseudoprime to all Basen, no divisor of n are. Each Carmichael number is the product of at least ...
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Centered decagonal number
Centered decagonal number A centered decagonal number is a centered figurate number that represents a decagon with a dot ... in successive decagonal layers. The centered decagonal number for n is given by the formula ... 101, 151, 211, 281, 361, 451,551, 661, 781, 911, 1051 Like any other ...
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A spangled number   (translated from French)
A spangled number One a spangled number is one numbers appeared centered who represents ... the plate of Chinese injuries. The spangled number for N is given by the formula ... 73 , 121, 181, 253, 337, 433, 541, 661, 793, 937, 1093, 1261, 1441, 1633, 1837 ... 9841, 10333, 10837 résidu of a spangled number is always 1 or 4. The ...
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Fermat pseudo prime number   (translated from German)
Fermat pseudo prime number Those fermatsche pseudo prime number n is a compound number, itself on certain Basen A mit ggT ... 1 und a>1, as a prime number holds back. Table of contents Preface to ... not have a relevance. absolute Euler prime number $\backslash subset$ Carmichael number $\backslash \; ...$
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