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Writing Numbers as Exponent
Last updated at Aug. 12, 2025 by Teachoo
Class 8 (Ganita Prakash & Old NCERT)
Chapter 2 Class 8 - Power Play (Ganita Prakash)
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Basic Concepts & Formulas
- Introduction
- Exponential Notation and Operations
- Figure it out - Page 22, 23
Transcript
Writing numbers as exponentSuppose we have a number 128 To write it as exponent, we do it’s prime factorization 128 = 2 × 2 × 2 × 2 × 2 × 2 × 2 128 = 27 Similarly, For 243 243 = 3 × 3 × 3 × 3 × 3 243 = 35 For 625 625 = 5 × 5 × 5 × 5 625 = 54 For 18 18 = 2 × 3 × 3 18 = 2 × 32 For 72 72 = 2 × 2 × 2 × 3 × 3 72 = 23 × 32 For 100 100 = 2 × 2 × 5 × 5 100 = 22 × 52 We can also write 100 as 100 = 10 × 10 = 102
