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Sep 1st, 2007, 02:00 AM
#1
Thread Starter
Lively Member
[RESOLVED] Perfect cube???
Expressed as the product of prime factors
540 = 2^2 x 3^2 x 5 and 72 = 2^3 x 3^2
Use these results to find
the smallest integer, t, such that 540t is a perfect cube.
I have looked through the working solutions but I don't understand the steps on why it is been done in that way. Can anyone explain it to me or maybe you could do it in another way so that I can understand it better? Thanks a lot.
Working solutions:
540t = 2^2 x 3^2 x 5 x (2x5^2)
=> t = 2 x 5^2
t = 50
Please answer this thread asap. Thanks a lot.
Last edited by Yunie; Sep 4th, 2007 at 12:30 AM.
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