I am the smallest number, having four different prime factors. Can you find me?
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Ncert Solutions Class 6th Chapter 3 Playing with Numbers Exercise 3.5 Question 11
18 is divisible by both 2 and 3. It is also divisible by 2 × 3 = 6. Similarly, a number is divisible by both 4 and 6. Can we say that the number must also be divisible by 4 × 6 = 24? If not, give an example to justify your answer.
Ncert Solutions Class 6th Chapter 3 Playing with Numbers Exercise 3.5 Question 10
Determine if 25110 is divisible by 45.
[Hint : 5 and 9 are co-prime numbers. Test the divisibility of the number by 5 and 9].
Ncert Solutions Class 6th Chapter 3 Playing with Numbers Exercise 3.5 Question 9
In which of the following expressions, prime factorisation has been done?
(a) 24 = 2 × 3 × 4 (b) 56 = 7 × 2 × 2 × 2 (c) 70 = 2 × 5 × 7 (d) 54 = 2 × 3 × 9
Ncert Solutions Class 6th Chapter 3 Playing with Numbers Exercise 3.5 Question 8
The sum of two consecutive odd numbers is divisible by 4. Verify this statement with the help of some examples.
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