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![[Class 7 Ganita] Find the HCF of the numbers (d) 400, 2500 - Figure it out - Page 54](https://cdn.teachoo.com/8bea0f1b-09e9-4044-a5f8-ab3a1b37e322/slide76.jpg)
Question 1(d) - Figure it out - Page 54 - Chapter 3 Class 7 - Finding Common Ground (Ganita Prakash II)
Last updated at January 22, 2026 by Teachoo
Class 7 (Ganita Prakash 1, 2 & old NCERT)
Chapter 3 Class 7 - Finding Common Ground (Ganita Prakash II)
- The Greatest of All
- Prime Factorisation
- Finding HCF using Prime Factorisation
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Figure it out - Page 54
- Least, but not Last!
- Finding LCM using Prime Factorisation
- Patterns, Properties, and a Pretty Procedure!
- Figure it out - Page 59
- Miscellenaous Questions on HCF, LCM
- Efficient Procedures for HCF and LCM
- Property Involving both the HCF and the LCM
- Figure it out - Page 63, 64
Transcript
Question 1(d) Find the HCF of the following numbers: (d) 400, 2500Let’s find Prime Factorisation of both 400 & 2500 Now, 400 = 2 × 2 × 2 × 2 × 5 × 5 2500 = 2 × 2 × 5 × 5 × 5 × 5 HCF of 40, 2500 = 2 × 2 × 5 × 5 = 4 × 25 = 100
