Replace $\mathrm{x}$ by suitable digits.

$61\mathrm{x}6$ is divisible by $3$

Replace $\mathrm{x}$ by suitable digits.

$61\mathrm{x}6$ is divisible by $9$

Replace $\mathrm{x}$ by suitable digits.

$1\mathrm{x}4$ is divisible by $3$

Replace $\mathrm{x}$ by suitable digits.

$75\mathrm{xx}$ is divisible by $9$

Replace $\mathrm{x}$ by suitable digits.

$9\mathrm{x}18$ is divisible by $9$

A multiple of eleven $\mathrm{I}$ be,

not odd, but even, you se.

 my digits (a pair), when multiplied together,

make a cube and square out of me.

I am really two numbers, that's true

I am divided by $4$ and $3$ too.

These digits of mine,

(In both) add to nine.

Be glad that there's just one of these,

Get the answer and then say “cheese'...

What is the  largest number that can be written with four $2\text{'}\mathrm{s}$ .

 

What is the  largest number that can be written with four $1\text{'}\mathrm{s}$ .