2.1 Convert 98 to a binary number.

To convert the decimal number 98 to binary, you'll want to divide the number by 2 and keep track of the remainders. Starting with 98, you get a remainder of 0. Keep dividing the quotient (49) by 2 until you reach 0, collecting remainders along the way: 49 (1), 24 (0), 12 (0), 6 (0), 3 (1), 1 (1). Reading the remainders from bottom to top, 98 in binary is represented as 1100010! You can also use handy tools like Python or online calculators if you're in a pinch! Simply input the number and convert it automatically. This can save time and help you double-check your manual calculations, ensuring you’re well on your way to binary mastery!