56 - 1 is divisible by
If n is any odd number greater than 1, then n(n2 - 1) is
Let N = 553 + 173 - 723. N is divisible by
What will be remainder when (6767 + 67) is divided by 68?
Find the minimum integral value of n such that the division 55n/124 leaves no remainder
Let k be a positive integer such that k+4 is divisible by 7. Then the smallest positive integer n, greater than 2, such that k+2n is divisible by 7 equals
A positive integer is said to be a prime number if it is not divisible by any positive integer other than itself and 1. Let p be a prime number greater than 5. Then (p2 - 1) is