Question

tìm bcnn của:

10,12,15      8,9,11         24,40,168

ai nhanh mình tik nhớ kb

Answer 1

10;12;15

10=2.5

12=2^2.3

15=3.5

bcnn(10;12;15)=2^2.3.5=60

8;9;11

bcnn(8;9;110)=8.9.11=792

vì 3 số là số nguyên tố cùng nhau

24;40;168

20=2^2.5

40=2^3.5

168=2^3.3.7

bcnn(24;40;168)=2^3.5.7=280

Answer 2

10=2.5

12=2^2.3

^15=3.5

^BCNN:4.3.5

^8;9;11

vi 3 so deu la so nguyen to nen

BCNN:8.9,11=792

24;40;16

24=2^3.3

40=2^3.5

^{168=2.2.2.3.7}

UCLN:2^3.3=24

TSR=5.7

BCNN:24.5.7=4200

Answer 3

10=2.5

12=2².3

15=3.5

=>BCNN(10,12,15)=2².3.5=15

8=2³

9=3²

11=11

=>BCNN(8,9,11)=2³.3².11=792

24=2³.3

40=2³.5

168=2³.3.7

=>BCNN(24,40,168)=2³.3.5.7=840

Answer 4

mk nhầm 10=2 .5

12 =2².3

15=3.5

=>BCNN(10,12,15)=2².3.5=60