Why Number displayed in scientific notation

I have tried to add two numbers and got a result displayed in scientific notation.
Then I have used the 'decimalformat()' function and result is wrong.
How can display the correct result. Please help
Please see the code I have used
<cfset N1=1>
<cfset N2=9999999999999899999999>
<cfset RESULT = N1+ N2>
<cfoutput>
#RESULT#
<br />
#decimalformat(RESULT)#
</cfoutput>
result :
1E+022
92,233,720,368,547,760.00
Thanks in advance

I think in floating point math adding 1 to 9999999999999899999999 is going to be a meaningless operation as by the time one converts 1 to a floating point of the scale & precision needed to represent 9999999999999899999999, it's going to lose any significance (ie: it's going to basically be represented as zero).
You'll need to do a search on how to deal with numbers of very high precision & scale. I don't have any code to hand. Have you done any of your own investigation on how to deal with this?
Adam

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I think in floating point math adding 1 to 9999999999999899999999 is going to be a meaningless operation as by the time one converts 1 to a floating point of the scale & precision needed to represent 9999999999999899999999, it's going to lose any significance (ie: it's going to basically be represented as zero).
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Why Number displayed in scientific notation

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