The ratio between two numbers is $3:4$ and their sum is $420$. The greater of the two numbers is

The number that must be added to $5555$ to obtain the least number of six figures exactly divisible by $357$ is:

In a division sum, the divisor is $10$ times the quotient and $5$ times the remainder. What is the dividend, if the remainder is $46$?

$2^{16}-1$ is divisible by

$\sqrt{2498} \times \sqrt{626} \div \sqrt{99} = ?$

The least prime number is