Encyclopedia > Super-Poulet number

  Article Content

Super-Poulet number

A super-Poulet number is a Poulet number whose every divisor d divides 2d - 2. For example 341 is a super-Poulet number: it has positive divisors {1, 11, 31, 341} and we have:
(211 - 2) / 11 = 2046 / 11 = 186
(231 - 2) / 31 = 2147483646 / 31 = 69273666
(2341 - 2) / 341 = ... (an integer)

The super-Poulet numbers below 10000 are (SIDN A050217) (http://www.research.att.com/cgi-bin/access.cgi/as/njas/sequences/eisA.cgi?Anum=050217):

n 
1 341 = 11 × 31
2 1387 = 19 × 73
3 2047 = 23 × 89
4 2701 = 37 × 73
5 3277 = 29 × 112
6 4033 = 37 × 109
7 4369 = 17 × 257
8 4681 = 31 × 151
9 5461 = 43 × 127
10 7957 = 73 × 109
11 8321 = 53 × 157



All Wikipedia text is available under the terms of the GNU Free Documentation License

 
  Search Encyclopedia

Search over one million articles, find something about almost anything!
 
 
  
  Featured Article
Johann Karl Friedrich Rosenkranz

... whole. In the great division of the Hegelian school, he, in company with Michelet and others, formed the "centre," midway between Erdmann and Gabler on the one hand, and the ...

 
 
 
This page was created in 40.4 ms