1!+2!+..............+50! divided by 50 then remainder will be.

• @sneha
  same when divided for 5 remainder is
  remainder is (1!+2!+3!+4!)=1+2+6+24=33(ans)
• 11 years agoHelpfull: Yes(15) No(3)
• 1/50(1+2+6+24+120+720+5040+40320+362880+0+0...)->10! onwards are divisible by 50
  again simplifying we get1/50(1+2+6+24+20+20+40+20+80+0+0...)
  adding all 1/50(213) rem=13
  ANS=13
• 11 years agoHelpfull: Yes(13) No(4)
• (1!+2!+3!+4!+5!+6!+7!+8!+9!.....)1/50 =
  (1+2+6+24+120+720+5040+40320+362880)= 4091130.
  the next no is 10! which is absolutely divisible by 50 and the remainder is 0
  so 4091130/5 we get remainder as 30.
  so ans is 30
• 11 years agoHelpfull: Yes(7) No(5)
• 13 yppp...
  9!+8!+7!+6!+5!+4!+3!+2!+1=409113
  
  divide this 6digit no. by 50 ..answer is 13..
  10! and above are not counted because all of them have 10 and 5 which result in 50 .So, all are divisbl by fifty
  
  Answer 13
• 11 years agoHelpfull: Yes(7) No(1)
• 1/50(1+2+6+24+120+720+5040.....)
  remainders of are=(1+2+6+24+0+0+0....) from 5! on wards the reaminder becoms zero
  now adding the remainders= 1+2+6+24=33
  dividing 33 by 5 we get remainder as 3
  please mention the options for the question....
• 11 years agoHelpfull: Yes(4) No(12)
• As in question of divide by 5…….. 1!+2!+3!+4! Reminder is sum of factorial up to 4 divided upon 5 and answer is 3 reminder……….
  here 5! Is not coming in the sum for because in 5! There is term(multiple) of 5 and after 5! All next no. factorial having term(multiple) of 5
  similarly when divide with 50! Up to 9! There is no nay term of 50 multiple
  but from 10! There is term in expansion of 10!(10*5)i.e 50 comes so stops up to 9! Only…….so reminder is sum up to 9!/50
  (1!+2!+3!+4!+5!+6!+7!+8!+9!.....)/50 =
  (1+2+6+24+120+720+5040+40320+362880)= 409113.
  409113/50 reminder is 13
  
  
• 11 years agoHelpfull: Yes(3) No(1)
• 1!+2!+..............+50! divided by 50
  reminder = 46
• 11 years agoHelpfull: Yes(1) No(4)
• @a/t PERACHISELVI solution ...some correction only
  (1!+2!+3!+4!+5!+6!+7!+8!+9!.....)1/50 =
  (1+2+6+24+120+720+5040+40320+362880)= 4091130.
  the next no is 10! which is absolutely divisible by 50 and the remainder is 0
  so 409113/5 we get remainder as 13.
  so ans is 13
• 11 years agoHelpfull: Yes(1) No(1)
• plz also give ans when same divided by 5 than remainder is???????????????
• 11 years agoHelpfull: Yes(0) No(1)
• @archna : you r wrong its not 5!,its 50 and i guess 720 is nt divided by 50..and likewise....is the question right
• 11 years agoHelpfull: Yes(0) No(4)
• (1!+2!+3!+4!+5!+6!+7!+8!+9!.....)1/50 =
  (1+2+6+24+120+720+5040+40320+362880)= 4091130.
  the next no is 10! which is absolutely divisible by 50 and the remainder is 0
  finally the answer is 4091130.
• 11 years agoHelpfull: Yes(0) No(3)
• (1!+2!+3!+4!+5!+6!+7!+8!+9!.....)/50 =
  (1+2+6+24+120+720+5040+40320+362880)= 4091130.
  so,4091130/50=30
  30*5=150,150/50=rem. is 0
  the next no is 10!...20!...50! which is absolutely divisible by 50
  ans rem 0
• 11 years agoHelpfull: Yes(0) No(1)