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2 Answers
- la consoleLv 72 weeks agoFavorite Answer
https://en.wikipedia.org/wiki/Triangular_number
t(n) = n.(n + 1)/2 → in your case: n = 583
t(583) = 583 * (583 + 1)/2
t(583) = 170236
- rotchmLv 72 weeks ago
First, state here what is a triangular number. You should be able to find this on your own. And or give its formula.
Then we will take it from there...
Since someone cheated and plagiarize my answer, I will therefore continue.
The n'th triangular # is n(n+1)/2. Replacing n by 583, and computing, gives your result.
