Decimal Conversions
1. Convert 262 to binary, octal, and hexadecimal:
- Binary: Divide 262 by 2 repeatedly and record remainders:
$$262 \div 2 = 131 \text{ remainder } 0$$
$$131 \div 2 = 65 \text{ remainder } 1$$
$$65 \div 2 = 32 \text{ remainder } 1$$
$$32 \div 2 = 16 \text{ remainder } 0$$
$$16 \div 2 = 8 \text{ remainder } 0$$
$$8 \div 2 = 4 \text{ remainder } 0$$
$$4 \div 2 = 2 \text{ remainder } 0$$
$$2 \div 2 = 1 \text{ remainder } 0$$
$$1 \div 2 = 0 \text{ remainder } 1$$
Reading remainders from bottom to top: $100000110_2$
- Octal: Divide 262 by 8 repeatedly:
$$262 \div 8 = 32 \text{ remainder } 6$$
$$32 \div 8 = 4 \text{ remainder } 0$$
$$4 \div 8 = 0 \text{ remainder } 4$$
Reading remainders from bottom to top: $406_8$
- Hexadecimal: Divide 262 by 16 repeatedly:
$$262 \div 16 = 16 \text{ remainder } 6$$
$$16 \div 16 = 1 \text{ remainder } 0$$
$$1 \div 16 = 0 \text{ remainder } 1$$
Reading remainders from bottom to top: $106_{16}$
2. Convert 305:
- Binary:
$$305 \div 2 = 152 \text{ remainder } 1$$
$$152 \div 2 = 76 \text{ remainder } 0$$
$$76 \div 2 = 38 \text{ remainder } 0$$
$$38 \div 2 = 19 \text{ remainder } 0$$
$$19 \div 2 = 9 \text{ remainder } 1$$
$$9 \div 2 = 4 \text{ remainder } 1$$
$$4 \div 2 = 2 \text{ remainder } 0$$
$$2 \div 2 = 1 \text{ remainder } 0$$
$$1 \div 2 = 0 \text{ remainder } 1$$
Binary: $100110001_2$
- Octal:
$$305 \div 8 = 38 \text{ remainder } 1$$
$$38 \div 8 = 4 \text{ remainder } 6$$
$$4 \div 8 = 0 \text{ remainder } 4$$
Octal: $461_8$
- Hexadecimal:
$$305 \div 16 = 19 \text{ remainder } 1$$
$$19 \div 16 = 1 \text{ remainder } 3$$
$$1 \div 16 = 0 \text{ remainder } 1$$
Hexadecimal: $131_{16}$
3. Convert 589:
- Binary:
$$589 \div 2 = 294 \text{ remainder } 1$$
$$294 \div 2 = 147 \text{ remainder } 0$$
$$147 \div 2 = 73 \text{ remainder } 1$$
$$73 \div 2 = 36 \text{ remainder } 1$$
$$36 \div 2 = 18 \text{ remainder } 0$$
$$18 \div 2 = 9 \text{ remainder } 0$$
$$9 \div 2 = 4 \text{ remainder } 1$$
$$4 \div 2 = 2 \text{ remainder } 0$$
$$2 \div 2 = 1 \text{ remainder } 0$$
$$1 \div 2 = 0 \text{ remainder } 1$$
Binary: $1001001101_2$
- Octal:
$$589 \div 8 = 73 \text{ remainder } 5$$
$$73 \div 8 = 9 \text{ remainder } 1$$
$$9 \div 8 = 1 \text{ remainder } 1$$
$$1 \div 8 = 0 \text{ remainder } 1$$
Octal: $1115_8$
- Hexadecimal:
$$589 \div 16 = 36 \text{ remainder } 13$$ (D in hex)
$$36 \div 16 = 2 \text{ remainder } 4$$
$$2 \div 16 = 0 \text{ remainder } 2$$
Hexadecimal: $24D_{16}$
4. Convert 896:
- Binary:
$$896 \div 2 = 448 \text{ remainder } 0$$
$$448 \div 2 = 224 \text{ remainder } 0$$
$$224 \div 2 = 112 \text{ remainder } 0$$
$$112 \div 2 = 56 \text{ remainder } 0$$
$$56 \div 2 = 28 \text{ remainder } 0$$
$$28 \div 2 = 14 \text{ remainder } 0$$
$$14 \div 2 = 7 \text{ remainder } 0$$
$$7 \div 2 = 3 \text{ remainder } 1$$
$$3 \div 2 = 1 \text{ remainder } 1$$
$$1 \div 2 = 0 \text{ remainder } 1$$
Binary: $1110000000_2$
- Octal:
$$896 \div 8 = 112 \text{ remainder } 0$$
$$112 \div 8 = 14 \text{ remainder } 0$$
$$14 \div 8 = 1 \text{ remainder } 6$$
$$1 \div 8 = 0 \text{ remainder } 1$$
Octal: $1600_8$
- Hexadecimal:
$$896 \div 16 = 56 \text{ remainder } 0$$
$$56 \div 16 = 3 \text{ remainder } 8$$
$$3 \div 16 = 0 \text{ remainder } 3$$
Hexadecimal: $380_{16}$
5. Convert 1045:
- Binary:
$$1045 \div 2 = 522 \text{ remainder } 1$$
$$522 \div 2 = 261 \text{ remainder } 0$$
$$261 \div 2 = 130 \text{ remainder } 1$$
$$130 \div 2 = 65 \text{ remainder } 0$$
$$65 \div 2 = 32 \text{ remainder } 1$$
$$32 \div 2 = 16 \text{ remainder } 0$$
$$16 \div 2 = 8 \text{ remainder } 0$$
$$8 \div 2 = 4 \text{ remainder } 0$$
$$4 \div 2 = 2 \text{ remainder } 0$$
$$2 \div 2 = 1 \text{ remainder } 0$$
$$1 \div 2 = 0 \text{ remainder } 1$$
Binary: $10000010101_2$
- Octal:
$$1045 \div 8 = 130 \text{ remainder } 5$$
$$130 \div 8 = 16 \text{ remainder } 2$$
$$16 \div 8 = 2 \text{ remainder } 0$$
$$2 \div 8 = 0 \text{ remainder } 2$$
Octal: $2025_8$
- Hexadecimal:
$$1045 \div 16 = 65 \text{ remainder } 5$$
$$65 \div 16 = 4 \text{ remainder } 1$$
$$4 \div 16 = 0 \text{ remainder } 4$$
Hexadecimal: $415_{16}$