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.
There are an infinite number of them. 8 has three prime factors, 30 is the first with three distinct prime factors.
30
It can be 30 whose prime factors are 2, 3 and 5
How about 105 whose prime factors are 3, 5 and 7
Just multiply the first three prime numbers together.
105
30 does.
There are an infinite number of them. 8 has three prime factors, 30 is the first with three distinct prime factors.
30 has factors of 2,3 and 5
30 is the first with three distinct prime factors.
Prime numbers have two factors. Prime squares have three factors. Square numbers have an odd number of factors but that number varies.
532