Pls explain its answer with proper reason

N! Have 13 zeros than what is the highest and lowest value of n??

• min=55!
  max=59!
• 12 years agoHelpfull: Yes(22) No(6)
• min=65!
  max=69!
• 12 years agoHelpfull: Yes(9) No(12)
• 55! & 59 !
• 12 years agoHelpfull: Yes(8) No(1)
• sorry,, i forgot to count that two 5's in 25 and 50. so min is 55 and max is 59
• 12 years agoHelpfull: Yes(5) No(1)
• min is 65 and max is 69
  in order to get 13 zeroes we need 13 5's and 2's
  is enough if we see that we get 13 5's bcz the number of 2's will anyways be more!
  5 is there in 5,10,15,20,...,65. so min 13 5's till 65.. to get max we shud see that we dont get another 5 i.e it should be less than 70. so max will be 69.
• 12 years agoHelpfull: Yes(4) No(10)
• can anyone explain me properly?
  
• 12 years agoHelpfull: Yes(2) No(2)
• can u pls explain me properly?
• 12 years agoHelpfull: Yes(2) No(2)
• min is 53!
  max is 65!
• 12 years agoHelpfull: Yes(1) No(5)
• 5*2,15*12,25*22,35*32,45*42,55*52
  10,20,30,40,50,60. Till now 12 zeros.
  The one zero which is left is-25 has two 5s.. i.e 25=5*5.So one 5 will pair up with 22 as mentioned above and one 5 will make another zero with 24(as 5*4=20).
  So you need minimum 60! and max it could be 64!
• 12 years agoHelpfull: Yes(1) No(4)
• How to do this sum? Can anyone explain me....
• 12 years agoHelpfull: Yes(0) No(4)
• Surely i know that one answer is 65! but how to find another one pls any body explain it........
• 12 years agoHelpfull: Yes(0) No(5)