If n is an integer, then (n<sup>3</sup> - n) is always divisible by :

Which one of the following is a prime number ?

Recently, a small village, in Tamilnadu where only male shepherd reside with four sheep each, was devastated by Tsunami …

Which of the following is a prime number ?

The greatest whole number, by which the expression n<sup>4</sup> + 6n<sup>3</sup> + 11n<sup&g…

Three numbers are in ratio 1 : 2 : 3 and HCF is 12. The numbers are:

The sum of two numbers is 18. The greatest product of these two number can be:

Find the unit digit in the product : $${\left( {4387} \right)^{245}}$$   $$ \times {\left( {621} \right)^{72}}…