Check whether ${\left(26\right)}^n$ can end with the digit $5$ for any $n\in N$.

Check whether the following number is prime or composite

$2\times 3+5$

Check whether the following number is prime or composite

$7\times 11\times 13+13$

Check whether the following number is prime or composite.

$3\times 7+2$

Check whether the following number is Prime Number / Composite Number

$13\times 17\times 19+23\times 28$