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MathGroup Archive 1998

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Re: discrete math, how many zeroes in 125!

  • To: mathgroup at smc.vnet.net
  • Subject: [mg13458] Re: [mg13418] discrete math, how many zeroes in 125!
  • From: "Jurgen Tischer" <jtischer at col2.telecom.com.co>
  • Date: Fri, 24 Jul 1998 01:45:42 -0400
  • Sender: owner-wri-mathgroup at wolfram.com

Hi Timothy,
you can't. Try to find out how many zeroes are in 101 counting the
factors of 2 and of 5. But you could count them:

In[1]:= Count[IntegerDigits[125!],0]

Out[1]= 47

Jurgen


-----Original Message-----
From: Timothy Anderson <trafh at aol.com> To: mathgroup at smc.vnet.net
Subject: [mg13458] [mg13418] discrete math, how many zeroes in 125!


>how can I solve this problem by counting the factors of 2 and 5 without
>doing each factor individually? thanks for any real quick help! Tim
>



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