Ex 3.4, 7 - Chapter 3 Class 6 Playing with Numbers
Last updated at April 16, 2024 by Teachoo
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Chapter 3 Class 6 Playing with Numbers
Concept wise
- Factors and Multiples
- Perfect number
- Prime and Composite Numbers
- Sum of prime numbers
- Prime numbers from 1 to 100
- Divisibility Tests - Divisibility by 5, 10, 2
- Divisibility Tests - Divisibility by 4, 8
- Divisibility Tests - Divisibility by 3, 6, 9
- Divisibility Tests - Divisibility by 11
- Divisibility Tests - All
- Common Multiples
- Common Factors
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More Divisibility Rules
- Factor Tree
- Prime Factorisation
- Highest Common Factor
- Lowest Common Multiple
- Statement questions on LCM
- Statement questions on HCF
Transcript
Ex 3.4, 7 A number is divisible by 12. By what other numbers will that number be divisible? A number is divisible by 12 So, it will be divisible by all its factors Factors of 12 1 × 12 = 12 2 × 6 = 12 3 × 4 = 12 4 × 3 = 12 We stop here as 4 & 3 have occurred earlier So factors of 12 are 1, 2, 3, 4, 6 and 12 So , the number is also divisible by 1, 2, 3, 4, 6 & 12
