Question 1: Ask user enter an integer, and print all the prime numbers less than user input integer. User enter integer: 10 prime number less than 10: 2, 3, 5,7 n table. User enter integer: 5 1 2 3 4 5 1 1 2 3 4 5 2 2 4 6 810 3 13 6 91215 4 14 812 16 20 5 |5 10 15 20 25