the last digit is the last digit of 1!+2!+3!+4!+5!+6!+7!+8!+9! because all the others end in zero, zero, zero! (Reason: for example, 36! 36x35x34x33x32x31.......x10x9x8.....3x2x1) I honestly dont know the second it could be anything from 0 to 9. Im soory this awnser is probably not helpful.
angelthecutehamster out!