Ex 3.2, 6 - Chapter 3 Class 6 Playing with Numbers
Last updated at Nov. 12, 2021 by Teachoo
Transcript
Ex 3.2, 6 Express the following as the sum of two odd primes. (a) 4444 = 1 + 43 44 = 2 + 42 44 = 3 + 41 (We cant take this as 1 is neither prime nor composite) (We can’t take this as 2 is even) (Both 3 and 41 are prime and odd)
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
- More Divisibility Rules
- Factor Tree
- Prime Factorisation
- Highest Common Factor
- Lowest Common Multiple
- Statement questions on LCM
- Statement questions on HCF
About the Author
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 10 years. He provides courses for Maths and Science at Teachoo.