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Ugly numbers are numbers whose only prime factors are 2, 3 or 5. The sequence
$1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, \ldots$
shows the first $11$ ugly numbers. By convention, 1 is included.
Write a program to find and print the 1500’th ugly number.
Write The 1500'th ugly number is <number>.