n=565: c431(4280333504......) = 78266159669064664908335545629161 * c399(5468945355......)
# GMP-ECM
n=553: c422(1979756390......) = 185586243006877450990871127217997 * c390(1066758159......)
# GMP-ECM
# via Yousuke Koide
n=684: c187(3853681916......) = 367758735915513355987163036605562773789741 * p146(1047883174......)
# GMP-ECM
n=639: c400(1850367513......) = 20701489453735537731327943094591653 * c365(8938330346......)
# GMP-ECM
# via Yousuke Koide
n=744: c192(4582467978......) = 16584440161215846282167330487128069170776821649169 * c143(2763112854......)
# GMP-ECM
n=369: c216(5257849375......) = 3151445759294008336434146467746716852125711 * c174(1668392787......)
# GMP-ECM
# via Yousuke Koide
n=355: c191(4777172787......) = 30124399372383431732349878765015295744155071 * p148(1585815115......)
# GMP-ECM