Final answer:
To express the number 3 in binary, a minimum of 2 bits is required, with the binary representation being 11.
Step-by-step explanation:
The student is asking about the least number of bits needed to express the number 3. In binary, the number 3 is represented as 11. Therefore, a minimum of 2 bits is required to express the number 3 in binary form. One bit can represent two values (0 or 1), and with two bits you can represent four different values (00, 01, 10, and 11), which is sufficient to include the number 3.