Question

BCNN(12;15)

 

Answer 1

12=2².3

15=3.5

=>BCNN(12;15)=2².3.5=60

Answer 2

12 = 2² . 3

15 = 3 . 5

BCNN ( 12, 15 ) = 2² . 3 . 5 = 60

Answer 3

12=2²x3

15=3x5 

=>BCNN(12,15)=2²x3x5=60

Vậy BCNN(12,15=60

Answer 4

BCNN(12;15)

Ta có: 12=2^2.3

           15=3.5

Vậy BCNN(12;15)=2^2.3.5=60