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Mathematics 16 Online
OpenStudy (anonymous):

solve

OpenStudy (zzr0ck3r):

lcm(10,20,30)

OpenStudy (zzr0ck3r):

what is the smallest number 10, 20 , and 30 will all divide?

OpenStudy (anonymous):

10

OpenStudy (zzr0ck3r):

does 30 divide 10?

OpenStudy (anonymous):

yes

OpenStudy (zzr0ck3r):

no a divide b means that a goes into b a whole number amount of times

OpenStudy (anonymous):

i think answer is 60

OpenStudy (zzr0ck3r):

10 divides 30, but 30 does not divide 10

OpenStudy (zzr0ck3r):

yes

OpenStudy (zzr0ck3r):

10 = 5*2 20 = 5*2*2 30 = 5*3*2 so lcm(10,20,30) = 5*3*2*2

OpenStudy (agent0smith):

You can also list multiples of them, till you find a common one: 10,20,30,40,50,60 20,40,60 30,60 Notice a common one?

OpenStudy (anonymous):

@zzr0ck3r & @agent0smith thank u

OpenStudy (zzr0ck3r):

break them down into there prime factorization, then take the highest power of each number

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