Express $96$ as a product of prime factors.

Express $7429$ as a product of its prime factors.

State whether the following rational number has a terminating decimal expansion or not. If it has a terminating decimal expansion,find it: $\frac{13}{125}$

The last digit of $5^n$ is . . . . . . ,where $n \in N$.

Consider the numbers $4^{n}$,where $n$ is a natural number. Check whether there is any value of $n$ for which $4^{n}$ ends with the digit zero.

Show that any positive odd integer is of the form $6q+1$,$6q+3$,or $6q+5$,where $q$ is some integer.