Let n be a positive integer. Show that the number S=1+1/2+1/3+...+1/n is not an integer.
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Originally Posted by mandy123 Let n be a positive integer. Show that the number S=1+1/2+1/3+...+1/n is not an integer. this was a problem of the week (we need $\displaystyle n \ge 2$), see here
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