Exercise 1. This program returns the $$n$$-th cyclotomic polymomial, where $n$ is a product of distince primes. Enter several choices for $$n$$ and the program would return $$\phi_n(x)$$ .

Please enter $$n$$ then click the button. Notice that $$n=p_1p_2 \cdots p_t$$, where $$p_i$$ are primes and $$p_i \neq p_j$$.