| We have, for instance, the five-factor pandigital decomposition for 172349856 = 6*7*84*92*531
a(1) = 129473856 = 4*6*8*93*7251
a(2) = 138729456 = 6*8*9*71*4523
a(3) = 162378594 = 6*7*9*51*8423
a(4) = 164597832 = 6*7*9*524*831
a(5) = 167495328 = 6*7*52*84*913
a(6) = 169857324 = 6*7*54*91*823
a(7) = 172349856 = 6*7*84*92*531
a(8) = 173429568 = 6*8*53*92*741
a(9) = 175349286 = 7*9*54*83*621
| 