20100612, 01:29  #1 
"Sastry Karra"
Jul 2009
Bridgewater, NJ (USA)
3^{3} Posts 
Known Largest Harshad Number.
Hi,
I want to find as many Harshad Numbers as I can using JAVA on my 32bit XP. Before I start, I would like to know if anyone did the same. If so, what is the know largest Harshad Number (of course to base 10). I will start from there onwards. Eg: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 18, 20, 21, 24, 27, 30, 36 etc..... Thanks, Sastry Karra 
20100612, 01:40  #2 
Jun 2003
3^{4}×67 Posts 
10^n, 2*10^n, 5*10^n, ...
Or, did you have something else in mind? 
20100613, 20:38  #3 
"Sastry Karra"
Jul 2009
Bridgewater, NJ (USA)
11011_{2} Posts 
Thanks for the response. Actually, I am looking for largest Harshad Number that is not divisible by 10 vix. 12, 18 etc.

20100613, 21:02  #4 
Jun 2003
3^{4}·67 Posts 

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