Je dois absolument le faire pour demain !!! Aidez moi svp c'est l'exercice 49 !! :(

rac(300) = rac(3x100) = rac(100)x rac(3) = 10rac(3)
rac(147) = rac(49x3) = rac(49)x rac(3) = 7rac(3)
rac(338) = rac(169x2) = rac(169)x rac(2) = 13rac(2)
rac(108) = rac(36x3) = rac(36)x rac(3) = 6rac(3)
rac(192) = rac(64x3) = rac(64)x rac(3) = 8rac(3)