Question
Who designed the Data Encryption Standard
(DES)?Solution
IBM designed the Data Encryption Standard (DES).
Find the smallest number by which 6300 must be multiplied to make it a perfect square.
If p and q are real numbers such that p2 + (p - 2q - 1)2 = - 4q(p + q), then the value p - 2q is
Find the remainder of (46)93 + (48)47 / 47 ?
Find the sum of the first 20 natural numbers.
In a school a total of 5,184 toffees was distributed among all the students in the school. The toffees were distributed in such a way that number of to...
- The nine-digit number 7x31265y2 is divisible by 88. Find the value of √(xy), given that x < 8 and y < 8.
When the digits of a two-digit number are interchanged, the new number becomes 11 more than 120% of the original number. If the sum of the digits is 8, ...
Find the smallest number that when divided by 6, 8, and 15 leaves a remainder of 5 in each case.
The smallest value of n, for which 2n + 1, is not a prime number, is
Find the sum of all the numbers between 2500 and 9800, which are divisible by 20, 28 and 35.
