OOPS, the primes <= 127 are: 2* 3* 5* 7* 11 13* 17* 19* 23 29 31* 37 41 43 47 53 59 61* 67 71 73 79 83 89* 97 101 103 107* 109 113 127*
but only the following prime exponents p (* above) give mersenne prime 2**p-1: p 2**p-1 2 3 3 7 5 31 7 127 13 8191 17 131071 19 524287 31 2147483647 61 2305843009213693951 89 618970019642690137449562111 107 162259276829213363391578010288127 127 170141183460469231731687303715884105727 HTH, A. Jorge Garcia calcp...@aol.com http://calcpage.tripod.com Teacher & Professor Applied Mathematics, Physics & Computer Science Baldwin Senior High School & Nassau Community College --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to sage-edu@googlegroups.com To unsubscribe from this group, send email to sage-edu+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en -~----------~----~----~----~------~----~------~--~---
