165
36
How about 6 whose factors are 1, 2, 3 and 6
2 and 3 are the smallest prime numbers. So answer is 2^3 * 3^3 = 216
The smallest non-palindromic number whose square is palindromic is 77. When squared, (77^2 = 5929), which is indeed a palindromic number. The next smallest non-palindromic number, 88, also yields a palindromic square, (88^2 = 7744), but 77 is the smallest such number.
121
That number is 724.
The smallest positive integer is 3.
72
30
36
44
2310
165
How about 6 whose factors are 1, 2, 3 and 6
It is 11 which is a prime number whose factors are itself and one
36
Well, honey, the smallest number with prime factors 3, 5, 7, and 11 is simply the product of these primes: 3 * 5 * 7 * 11 = 1155. So, there you have it, darling, 1155 is the smallest number you're looking for.