<commit_before>---
published: true
title: '#5050 sum(1,100)'
tags: math
---
> [Somme des premiers entiers](https://fr.wikipedia.org/wiki/Somme_(arithm%C3%A9tique)#Somme_des_premiers_entiers)

![caption](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/The_sum_of_the_first_n_odd_integers_is_n%C2%B2._1%2B3%2B5%2B...%2B%282n-1%29%3Dn%C2%B2..gif/440px-The_sum_of_the_first_n_odd_integers_is_n%C2%B2._1%2B3%2B5%2B...%2B%282n-1%29%3Dn%C2%B2..gif) <commit_msg>Update 2021-07-18-n-sum-5050.md<commit_after>---
published: true
title: 'sum(1,100)'
tags: math
---
> [#5050](https://www.etaletaculture.fr/sciences/somme-des-nombres-de-1-a-100-une-lecon-de-maths-donnee-par-le-ptit-gauss-7-ans/), M'sieur - [Somme des premiers entiers](https://fr.wikipedia.org/wiki/Somme_(arithm%C3%A9tique)#Somme_des_premiers_entiers)

![caption](https://upload.wikimedia.org/wikipedia/commons/thumb/d/d8/The_sum_of_the_first_n_odd_integers_is_n%C2%B2._1%2B3%2B5%2B...%2B%282n-1%29%3Dn%C2%B2..gif/440px-The_sum_of_the_first_n_odd_integers_is_n%C2%B2._1%2B3%2B5%2B...%2B%282n-1%29%3Dn%C2%B2..gif)

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