Ugly numbers are those whose prime factors are 2, 3 or 5.
find the nth ugly number.
n.b. unlike the previous problem,trivial solution might not work in this case.
Bravo! nice algorithm, practical and very "matlab-oriented".
Numbers with prime factors 2, 3 and 5.
Stuff the Board
Compute a dot product of two vectors x and y
Unique values without using UNIQUE function
Find the nearest prime
Summing Rows and Columns
Sieve of Eratosthenes
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