Math Problem of the Week #12 November 27, 2016November 27, 2016 tigerboy777 Weekly Math ProblemsFactors How many whole numbers between 1 and 100 have 5 factors? Share this:TwitterFacebookLike Loading...
Well numbers of the form p^n where p is prime have n+1 factors which are: 1,p,p^2,…,p^n So you have all the numbers which are of the form p^4 where p is prime. which is 2^4=16 and 3^4=81 LikeLike Reply
foosballoctopus 
Well numbers of the form p^n where p is prime have n+1 factors which are: 1,p,p^2,…,p^n
So you have all the numbers which are of the form p^4 where p is prime.
which is 2^4=16 and 3^4=81
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Nice! You are correct.
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