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 Celsius x Fahrenheit (Posted on 2005-08-31)
When, recently, I did a conversion of a positive integral Celsius temperature, C = 275, to its Fahrenheit equivalent, it turned out to be F = 527, and I notice that I could have simply moved the digit at right of C, to the front, to obtain F. After some intense calculations, I failed to discover the next largest such example.

Does one exist, and if so, what is it?

 See The Solution Submitted by pcbouhid Rating: 3.3333 (3 votes)

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 Some Big Numbers -- Computer Solution | Comment 5 of 9 |

In UBASIC:

list
10   for Z=1 to 42
20    for Y=5 to 5
30       Num=(Y*10^Z-9)
40       M=(Num-32)@17
50       if M=0 then
51       :X=(Num-32)//17
60       :print Y*10^Z+X;10*X+Y;Z
70    next Y
80   next Z
OK
run
527  275  2
5294117647058823527  2941176470588235275  18
52941176470588235294117647058823527  29411764705882352941176470588235275  34

 Posted by Charlie on 2005-08-31 19:50:15

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