Check whether $61479$ is divisible by $81.$

Check whether $864$ is divisible by $36?$ Verify whether $864$ is divisible by all the factors of $36?$

Check whether $756$ is divisible by $42?$ Verify whether $756$ is divisible by all the factors of $42?$

Check whether $2156$ is divisible by $11$ and $7$? Verify whether $2156$ is divisible by product of $11$ and $7$?

Check whether $1435$ is divisible by $5$ and $7?$ Verify if $1435$ is divisible by the product of $5$ and $7?$

Check whether $456$ and $618$ are divisible by $6?$ Also check whether $6$ divides the sum of $456$ and $618?$?

Check whether $876$ and $345$ are divisible by $3?$ Also check whether $3$ divides the difference of $876$ and $345$?

Check whether $2^2+2^3+2^4$ is divisible by $2$ or $4$ or by both $2$ and $4$?

Check whether ${32}^2$ is divisible by $4$ or $8$ or by both $4$ and $8$?