Math Problem Statement

What is the largest positive number one can represent in 5-bit 2’s complement code?

Solution

In 5-bit 2's complement representation, the most significant bit (MSB) is the sign bit. It indicates whether the number is positive (0) or negative (1). The remaining 4 bits represent the magnitude of the number.

Steps:

  • The smallest number (most negative) in 5-bit 2's complement is represented by 10000, which equals -16.
  • The largest number (most positive) is represented by 01111.

For a 5-bit 2's complement number:

  • The binary representation of the largest positive number is 01111.
  • This is 0×24+1×23+1×22+1×21+1×200 \times 2^4 + 1 \times 2^3 + 1 \times 2^2 + 1 \times 2^1 + 1 \times 2^0.

Calculating the decimal value: 23+22+21+20=8+4+2+1=152^3 + 2^2 + 2^1 + 2^0 = 8 + 4 + 2 + 1 = 15

Thus, the largest positive number that can be represented in 5-bit 2's complement is 15.

Would you like more details or have any questions?

Here are 5 related questions for you:

  1. How do you represent the smallest negative number in 5-bit 2's complement?
  2. What is the range of numbers that can be represented in a 6-bit 2's complement system?
  3. How does 2’s complement simplify the process of subtraction in binary?
  4. Can you explain how to convert a negative decimal number to 2’s complement?
  5. What happens if you try to represent a number larger than the 2's complement range?

Tip: When converting a negative number into 2's complement, flip all the bits and add 1!

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Math Problem Analysis

Mathematical Concepts

Binary Numbers
2's Complement Representation
Bitwise Operations

Formulas

2's Complement Calculation
Binary to Decimal Conversion

Theorems

2's Complement Representation Theorem

Suitable Grade Level

Grades 9-12