What are the last two digits in the sum of factorials of the first 100 positive integers?

13

Factorials greater than or equal to 10 ends in two zeros, which wont change the outcome

Add 1-9 factorials

1!+2!+3!+4!+5!+6!+7!+8!+9!=409113

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!