This a program to solve for ugly numbers. It is currently set to solve for the 1500th ugly number by default, but is easily changeable just by updating the condition of the while loop. Ugly numbers here are those which have only 2, 3, and/or 5 as prime factors.-This is a program to solve for ugly numbers. It is currently set to solve for the 1500th ugly number by default, but is easily changeable just by updating the condition of the while loop. Ugly numbers here are those which have only 2, 3, and/or 5 as prime factors.