If m is even, then (8m - 1) is divisible by:
63
When m is even, (8m - 1) is divisible by 63 because the expression is a difference of cubes.
The difference between the greatest and least five-digit numbers formed by the digits 2,5,0,6,8 is (repetition of digits are not allowed)
The least number that must be subtracted from 63520 to make the result a perfect square is
What is the Highest Common Factor of 2 3× 3 5and 3 3× 5 2?
Four prime numbers are arranged in ascending order. The product of the first three numbers is 255 and that of the last three is 1955. The largest prime number is:
Find the number of all prime numbers less than 55.
Value of the square root of \(\frac{36.1}{102.4}\) is:
For any natural number n, 6n - 5n always ends with