They are 154, 308 and 616.
The smallest number with three different prime factors is 30.
30
Just multiply the first three prime numbers together.
2 x 3 x 5 = 30
101 is the first three-digit prime number.
154, 308, 462
3
If by "least number" you mean "smallest positive integer", then the answer is the product of the three smallest primes: 2x3x5 = 30
The smallest three digit prime number is 101.
The smallest prime factor for 2,049 is three (3).
It is 103 which is a prime number because it has only two factors which are itself and one
The smallest prime factor of 195 is three.