"La somme de trois entiers consécutifs est un multiple de trois"
Cette affirmation est-elle vraie ou fausse (donnez un contre-exemple)


By: USER9771
28 Agustus 2025 mathematiques 5 minutes
4.5
160 views 160 comments 13 shares

Question

Grade: Education Subject: mathematiques

"La somme de trois entiers consécutifs est un multiple de trois"
Cette affirmation est-elle vraie ou fausse (donnez un contre-exemple)


Asked by:
160 Viewed 160 Answers

Answer (160)

Best Answer
(94)
bonjour

n + ( n + 1) + ( n + 2) = n + n + 1 + n + 2 = 3 n + 3 donc vrai

Answered on 28 Agustus 2025
(77)
c'est vrai, il n'ya pas de contre-exemple mais je ne suis pas sur

Answered on 28 Agustus 2025

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