Multiply the three smallest primes: $$2\times3 \times5=30$$, whose $$8$$ divisors are $$1$$, $$2$$, $$3$$, $$5$$, $$6$$, $$10$$, $$15$$, and $$30$$. 
If I multiply three different prime numbers, the product must have  positive divisors. 
Options:
(1) $$ 3 $$ 
(2) $$5 $$ 
(3) $$6 $$ 
(4) $$8$$ 