Posted by: as_ashu December 24, 2007
HEAD GAME
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you got it man
D=5
sol:-
 Any sequence with a constant sum must repeat it self.
B=9 ,so we can deduct that E=9, because B+C+D= 16 and C+D+E= 16 .B and E must have the same value.Similarly, because F=2
Now ,we can conclude that C= 2 .
now again we have C+D+E=16,with C=2 and E=9
There four D=5.

Solve it Fun Factor
The number 6 is the smallest number that has exactly four factors: 1,2,3,and 6.The number 12 is the smallest number that has exactly six factors:1,2,3,4,6,and 12.
   what is the smallest number that has exactly 100factors?
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