document.write( "Question 691617: what is the sum of the first 334 natural numbers? \n" ); document.write( "

Algebra.Com's Answer #426778 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
There's a formula for that. You can prove it ( sort of )
\n" ); document.write( "by taking some examples
\n" ); document.write( "Sum 1 through 13 = 91 ( on my calculator )
\n" ); document.write( "The formula is:
\n" ); document.write( " $\"+S+=+%281%2F2%29%2A13%2A14+\"$
\n" ); document.write( " $\"+S+=+91+\"$
\n" ); document.write( "So, the sum of 1 through 334 is
\n" ); document.write( " $\"+S+=+%281%2F2%29%2A334%2A335+\"$
\n" ); document.write( " $\"+S+=+%281%2F2%29%2A111890+\"$
\n" ); document.write( " $\"+S+=+55945+\"$
\n" ); document.write( " \n" ); document.write( "

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