Q. N= 2*4*6*8*10...........100 how many zero at the end of N?

• 12 zeros
  
  N= 2*4*6*8*10...........100
  
  I think there are 12 zeros at the end of N.
  one zero from each of 10,20,30,40......90 ( total 9) and two zeros from 100 and 1 additional zero from 50.
• 11 years agoHelpfull: Yes(11) No(9)
• N=2*4*6*8*10*-------------*100
  =3.42432247*10^79
  =3424322470000000000000000000000000000000000000000000000000000000000000000000000
  there fore totally 71 zeros at the end of the the number N
• 11 years agoHelpfull: Yes(3) No(5)
• 12 zeros
  10*20*30...*90 gives zeros. two zeros from 100 and two zeros from 2*50 (2*5*10)
• 7 years agoHelpfull: Yes(1) No(0)
• 16 zero
  10,20,30,40,60,70,80,90,100 multiple comes 10 zeros
  and multiple 50,52,54,56,58 comes 6 zeros total 16
• 11 years agoHelpfull: Yes(0) No(2)
• exactly we will get 10 zeros
  2*4*6*8*10=3840,from 1-10 we will get one zero,12-20/ 2 0's..........92-100
• 11 years agoHelpfull: Yes(0) No(2)
• N=2*4*6*8*10*........100
  N=3.42432247*10^79
  So number of zero=71
• 10 years agoHelpfull: Yes(0) No(1)
• product of gp = (a0.an)^n+1/2
  (2*100)51/2
  1.4*10^53
  
• 7 years agoHelpfull: Yes(0) No(0)