Twenty times of a positive integer is less than its square by 96. What is the value of the integer? 

Find the Unit digit of $6^{\left(21\right)^{\left(61\right)^{218}}}$. 

Free notebooks were distributed equally among students of a class. The number of notebooks each student got was 1/8th of the number of total students. Had the number of students been half, each student would have got 16 notebooks. How many notebooks were distributed in all? 

Find last digit of $2^{\left(27\right)^{2}}$ 

The difference between a number and its three fifth is 50. Find is the number? 

Find the last digit of 271 × 96 × 55 × 24 × 99 

203, 959, 1001, 553 are completely divisible by? 

$\frac{21 \times 57 \times 5 !}{10}$; find remainder 

Which of following will not leave any remainder when dividing 23n –1 for all the natural numbers ‘n’? 

Find the smallest number which when divided by 7 leaves no remainder but when divided by 6, 15 and 17 leaves 1 as remainder. 

Find the remainder when 6666666........45 times is divided by 37?

Find the remainder of the expression.

$\frac{{10}^1+{10}^2+{10}^3+{\mathrm{....100}}^{100}}{6}$

By which of the following numbers, this term will not be dvisible by?

23¹⁰ − 2¹⁰

Find the number of factors of 240.

Find the sum of the all the factors of 240.