------------------------------------------------------------ p(18911) Date: March 1st, 1993 Factors: 2 * 2 * 3 * 3 * 17 * 23 * 47 * 181 * 467 * 1609 * 592168974391 * 55497056848171 * 107687124178369 * 304377001208707726108170057217727 * 123103789501299494701152640296568596215244376202558266201818113 Method: ECM, ppmpqs; primality of the factors with ECPP. Time: two weeks human time on an incredible variety of machines Name: Reynald Lercier, Francois Morain Address: LIX, Ecole Polytechnique, F-91128 Palaiseau Cedex FRANCE Email: lercier@polytechnique.fr or morain@polytechnique.fr phone: +33 1 69 33 45 89 ------------------------------------------------------------