6, 8 and 10 are three out of 32 possible answers.
The three greatest whole numbers less than 200 that each have an odd number of factors are 144, 169 and 196.
The ones with less than three factors.
They all are prime numbers except 1
144, 121 and 100
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
14 (I think).
20, 40, 60, 80
The numbers 60, 72, 84, 90, and 96 each have 12 factors.
60, 72, 84, 90 and 96 each have twelve factors.
30, 42, 66, 70 and 78.
4,27,and38
The numbers 60, 72, 84, 90, and 96 each have 12 factors.