I haven't been able to find a satisfactory definition of the lcm of a set in my usual references.
Just to be clear, I assume that lcm(a,b,c) = lcm(a,lcm(b,c)), so that lcm(2,3,5) = 30.
An alternative definition (probably wrong) of lcm of a set might be the maximum lcm of elements taken pair-wise, in which case lcm(2,3,5) = 15.
Problem 590
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yourmaths
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Problem 590
Last edited by yourmaths on Tue Feb 14, 2017 11:08 pm, edited 1 time in total.
level = lambda number_solved: number_solved // 25
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sjhillier
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Re: Problem 590
This is the correct interpretation for this problem. The statement doesn't ask for the 'lcm of a set', it requires 'the least common multiple of the integers in the set', which I think is clear.yourmaths wrote: Tue Feb 14, 2017 10:11 pm
Just to be clear, I assume that lcm(a,b,c) = lcm(a,lcm(b,c)), so that lcm(2,3,5) = 30.
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yourmaths
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Re: Problem 590
OK thanks sjhillier. At least I'm on the right track now (I think!).
It seems like 'the least common multiple of the integers in the set' is still somewhat ambiguous for the same reason, until the lcm of three numbers is defined.
It seems like 'the least common multiple of the integers in the set' is still somewhat ambiguous for the same reason, until the lcm of three numbers is defined.
level = lambda number_solved: number_solved // 25