Bonsoir
ce carré est il magique pour la multiplication :
= 2^5 x 2^1 x 2^9 = 2^(5+1+9) = 2^15
= 2^3 x 2^8 x 2^4 = 2^(3+8+4) = 2^15
= 2^7 x 2^6 x 2^2 = 2^(7+6+2) = 2^15
= 2^5 x 2^3 x 2^7 = 2^(5+3+7) = 2^15
= 2^1 x 2^8 x 2^6 = 2^(1+8+6) = 2^15
= 2^9 x 2^4 x 2^2 = 2^(9+4+2) = 2^15
= 2^5 x 2^8 x 2^2 = 2^(5+8+2) = 2^15
= 2^7 x 2^8 x 2^9 = 2^(7+8+9) = 2^24
ce n’est pas un carré magique
