LCM 3 numbers

[bronx.system]

sorry to make 2 threads i did try google but still cant get right answer.

the 3 numbers are
30, 75, 60

i have their prime factors

30 = 3*5*2
75 = 5^2 * 3
60 = 2^2 * 3 * 5

now i have those numbers what do i do S:

EDIT:

do i just take the largest not sure what you call them "largest common factors" ?

3* 5^2 * 2^2
= 3 * 25 * 4
= 300

what do you call the numbers i chose S:

 

[DrPhil]

sorry to make 2 threads i did try google but still cant get right answer.

the 3 numbers are
30, 75, 60

i have their prime factors

30 = 3*5*2
75 = 5^2 * 3
60 = 2^2 * 3 * 5

now i have those numbers what do i do S:

EDIT:

do i just take the largest not sure what you call them "largest common factors" ?

3* 5^2 * 2^2
= 3 * 25 * 4
= 300

what do you call the numbers i chose S:

Correct. You need a number with all the factors of the individual numbers. Thus you need two factors of 2, one factor of 3, and two factors of 5.

 

[bronx.system]

awesome thanks

 

[John Marsh]

Find easy steps and more examples on Least Common Multiple