n=4100M: c742(2487405727......) = 613147347674628012609076766868745938781747501 * c697(4056782984......)
# ECM B1=43e6, sigma=2825754950895789
n=11022: c3272(9192504388......) = 15285659517712849659334646442109099 * c3238(6013809464......)
# ECM B1=5e6, sigma=8451230280482068
n=11028: c3658(1815944381......) = 6575760682755470241764235361478749 * c3624(2761573100......)
# ECM B1=3e6, sigma=114918809848742
n=12330: c3260(1620413294......) = 1598868175698987229754422816040533441 * c3224(1013475231......)
# ECM B1=5e6, sigma=3949108578646975
n=12337: c11232(9999999999......) = 3042670847015129133696713613521 * c11202(3286586194......)
# ECM B1=1e6, sigma=6028446040571788
# via Kurt Beschorner
n=63149: c63149(1111111111......) = 731197287945862250521096871 * c63122(1519577724......)
# ECM B1=1e6, sigma=0:8618785652602297
n=71549: c71549(1111111111......) = 18379709699773367960014327997 * c71520(6045313714......)
# ECM B1=1e6, sigma=0:1007016806845147
n=71569: c71569(1111111111......) = 9132447865959263943735632521883 * c71538(1216662966......)
# ECM B1=1e6, sigma=0:6661750315960354
n=3014: c1344(4122220386......) = 3224257283821690911882860343913279673197968001 * c1299(1278502310......)
# ECM B1=20e6, sigma=346575584497108
n=11015: c8749(3224581307......) = 38361476883252040573781321 * c8723(8405779886......)
# ECM B1=1e6, sigma=5117826424394022
n=12295: c9803(2411926920......) = 484743392732493780746667717991 * c9773(4975677763......)
# ECM B1=1e6, sigma=1522186952526259
n=12307: c11872(1109260586......) = 333374801444055325819386005205439 * c11839(3327367820......)
# ECM B1=1e6, sigma=5919142273543134
n=12328: c5752(7115105379......) = 1485186211524993980332189457327993 * c5719(4790716021......)
# ECM B1=1.5e6, sigma=8456453911070310
# via Kurt Beschorner
n=33083: c33083(1111111111......) = 6675715261589480685252905491003 * c33052(1664407584......)
# ECM B1=1e6, sigma=0:8131647610823038
n=70997: c70997(1111111111......) = 12569762063305598037002812395517 * c70965(8839555637......)
# ECM B1=1e6, sigma=0:7572621526288766
n=71011: c71011(1111111111......) = 994162421596480115595396227 * c70984(1117635395......)
# ECM B1=1e6, sigma=0:4672737597017891