mersenne prime numbers
71R. E. Powers — Details of the life of R.E. Powers are little known; however, he was apparently the first mathematician to demonstrate that the Mersenne number M107 = 2107 − 1 was indeed prime. This was published in his article Certain composite Mersenne s… …
725 (number) — This article discusses the number five. For the year 5 AD, see 5. For other uses of 5, see 5 (disambiguation). 5 −1 0 1 2 3 4 5 6 7 8 9 → List of numbers Integers …
73Power of two — In mathematics, a power of two is any of the integer powers of the number two; [cite book |title=Schaum s Outline of Theory and Problems of Essential Computer Mathematics |first=Seymour |last=Lipschutz |year=1982 |id=ISBN 0070379904 |pages=3] in… …
7417 (number) — ← 16 18 → 17 ← 10 11 12 13 14 15 16 …
75Luigi Poletti (mathematician) — Luigi Poletti (1864 ndash; 1967) was an Italian mathematician and poet. He was born in Pontremoli, where he also died, aged 103 ( 103 is a prime number !, his main field of research were prime numbers ). His mathematical studies have been related …
7611 (number) — Number|number = 11 range = 10s cardinal = eleven ordinal = th ordinal text = numeral = undecimal factorization = prime prime = divisor = 1, 11 roman = XI unicode = greek prefix = (from Greek) latin prefix = (from Latin) bin = 1011 oct = 102 duo …
77Leonhard Euler — Infobox Scientist name = Leonhard Euler|box width = 300px |200px image width = 200px caption = Portrait by Johann Georg Brucker birth date = birth date|df=yes|1707|4|15 birth place = Basel, Switzerland death date = 18 September (O.S 7 September)… …
78Murderous Maths —   …
79Friendly number — In number theory, a friendly number is a natural number that shares a certain characteristic called abundancy, the ratio between the sum of divisors of the number and the number itself, with one or more other numbers. Two numbers with the same… …
80Primzahl — Die Zahl 12 ist keine Primzahl. Eine Primzahl ist eine natürliche Zahl, die größer als eins und ausschließlich durch sich selbst und durch eins teilbar ist. Eine Primzahl ist also eine natürliche Zahl mit genau zwei natürlichen Zahlen als Teiler …
