Question

tim bcnn cua

10,12,15

8,9,11

24,40,168

Answer 1

1) Ta có: 10 = 2.5

12 = 2².3

15 = 3.5

=> BCNN(10;12;15) = 2².3.5 = 60

2) Do 8;9;11 nguyên tố cùng nhau từng đôi một => BCNN(8;9;11) = 8.9.11 = 792

3) Ta có: 24 = 2³.3

40 = 2³.5

168 = 2³.3.7

=> BCNN(24;40;168) = 2³.3.5.7 = 840

Answer 2

BCNN(10,12,15) là:

10=2.5

12=2².3

15=3.5

=>BCNN(10,12,15)=2².3.5=60

BCNN(8,9,11):

8=2³

9=3²

11=11

=>BCNN(8,9,11)=2³.3².11=792

BCNN(24,40,168):

24=2³.3

40=2³.5

168=2³.3.7

=> BCNN(24;40;168)=2³.3.5.7=840

Answer 3

BCNN(10,12,15) là:

10=2.5

12=2².3

15=3.5

=>BCNN(10,12,15)=2².3.5=60

BCNN(8,9,11):

8=2³

9=3²

11=11

=>BCNN(8,9,11)=2³.3².11=792

BCNN(24,40,168):

24=2³.3

40=2³.5

168=2³.3.7

=> BCNN(24;40;168)=2³.3.5.7=840

Answer 4

BCNN(10,12,15) là:

10=2.5

12=2².3

15=3.5

=>BCNN(10,12,15)=2².3.5=60

BCNN(8,9,11):

8=2³

9=3²

11=11

=>BCNN(8,9,11)=2³.3².11=792

BCNN(24,40,168):

24=2³.3

40=2³.5

168=2³.3.7

=> BCNN(24;40;168)=2³.3.5.7=840

Answer 5

BCNN(10,12,15) là:

10=2.5

12=2².3

15=3.5

=>BCNN(10,12,15)=2².3.5=60

BCNN(8,9,11):

8=2³

9=3²

11=11

=>BCNN(8,9,11)=2³.3².11=792

BCNN(24,40,168):

24=2³.3

40=2³.5

168=2³.3.7

=> BCNN(24;40;168)=2³.3.5.7=840

Answer 6

) Ta có: 10 = 2.5

12 = 2².3

15 = 3.5

=> BCNN(10;12;15) = 2².3.5 = 60

2) Do 8;9;11 nguyên tố cùng nhau từng đôi một => BCNN(8;9;11) = 8.9.11 = 792

3) Ta có: 24 = 2³.3

40 = 2³.5

168 = 2³.3.7

=> BCNN(24;40;168) = 2³.3.5.7 = 84

Answer 7

ta co : 10 = 2.5

12 = 2.² . 3

15 =3.5

= > bcnn [10;12;15]

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