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
The only two-digit number that has three different prime factors is 2 x 3 x 5, which equals 30. This number has the prime factors 2, 3, and 5, all of which are distinct prime numbers. Any other two-digit number with three prime factors would have at least one repeated prime factor, making it not have three different prime factors.
Just multiply the first three prime numbers together.
How about 105 whose prime factors are 3, 5 and 7
30 does.
105
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