Cevap :

75  3              30  2

25  5               15 3

5    5                5  5                                       21bölü3=7bölü7=1 =3.7.1=21

1                      1         =2.3.5=30

=3.5(üssü2)=75

 

28  2                                                                 42 : 2 =21: 3= 7: 7= 1 =2.3.7=42

14  2

7    7

1           =2(üssü2).7=28                        

 

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