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SS1: MATHEMATICS - 1ST TERM
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Number Base System I | Week 16 Topics|2 Quizzes
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Number Base System II | Week 23 Topics
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Number Base System III | Week 32 Topics|1 Quiz
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Modular Arithmetic I | Week 42 Topics
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Modular Arithmetic II | Week 53 Topics
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Modular Arithmetic III | Week 64 Topics|1 Quiz
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Indices I | Week 73 Topics|1 Quiz
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Indices II | Week 81 Topic|1 Quiz
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Logarithms I | Week 93 Topics
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Logarithms II | Week 104 Topics|1 Quiz
Lesson 3,
Topic 1
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Conversion from Octal to Binary – Application to Programming
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Topic Content:
- Conversion from Octal to Binary – Application to Programming
Octal Digit | Equivalent in Binary | Special Codes |
0 | 0 | 000 |
1 | 1 | 001 |
2 | 10 | 010 |
3 | 11 | 011 |
4 | 100 | 100 |
5 | 101 | 101 |
6 | 110 | 110 |
7 | 111 | 111 |
Example 3.1.1:
Convert 4057 to binary via octal
Solution:

⇒ 405710 = \( \scriptsize 7731_8 \)
Use the table overleaf
i.e. 77318 = 111 111 011 001
∴ 405710 = \( \scriptsize 111111011001_2 \)
Very amazing approach Sir. Thank you indeed.