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glenda staton
Junior Member

USA
3 Posts

Posted - 03/02/2011 :  19:28:26  Show Profile  Reply with Quote
what is the lcm for 88,90,91,And is there any way to check your answer.My snswer is 360360.But,Im not sure about it.
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Admin
Forum Admin

USA
635 Posts

Posted - 03/02/2011 :  19:31:16  Show Profile  Reply with Quote
quote:
Originally posted by glenda staton

what is the lcm for 88,90,91,And is there any way to check your answer.My snswer is 360360.But,Im not sure about it.



See my lesson on Multiples and Least Common Multiples.

Gisele
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glenda staton
Junior Member

USA
3 Posts

Posted - 03/02/2011 :  19:43:42  Show Profile  Reply with Quote
quote:
Originally posted by Admin

quote:
Originally posted by glenda staton

what is the lcm for 88,90,91,And is there any way to check your answer.My snswer is 360360.But,Im not sure about it.


I see how to do those but,instead of doing all that adding I am doing is as to see what prime factor goes into each number then multiplying them all together.
See my lesson on Multiples and Least Common Multiples.

Gisele

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Admin
Forum Admin

USA
635 Posts

Posted - 03/02/2011 :  20:40:20  Show Profile  Reply with Quote
quote:
Originally posted by glenda staton

quote:
Originally posted by Admin

quote:
Originally posted by glenda staton

what is the lcm for 88,90,91,And is there any way to check your answer.My snswer is 360360.But,Im not sure about it.


I see how to do those but,instead of doing all that adding I am doing is as to see what prime factor goes into each number then multiplying them all together.
Gisele





The prime factorization of 88 is 2x11
The prime factorization of 90 is 2 x 3 x 5
The primefactorization of 91 is 7 x 13

Can you do the rest?
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