How about 105 whose prime factors are 3, 5 and 7
By definition, a prime number has exactly two factors. So, there are no prime numbers with exactly three factors.
One answer is 30. There are others.
105 is one such number.
105=3*5*7it has to be only three factors and they are all prime105
no, factors of a number would be less than that of the original number. A prime number is a number that has factors of only itself and 1.
The square of any prime number has exactly three factors: 22, 32, 52, etc.
30 (2 x 3 x 5) and 42 (2 x 3 x 7) are the only numbers less than 60 having three different prime factors.
The smallest number that has exactly three factors is 4.