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RS AGGARWAL-FACTORS AND MULTIPLES -Exercise 2 A
- Define : (i) factor (ii) multiple. Give five examples of each
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- Write down all the factors of (i) 20, (ii) 36, (iii) 60 (i...
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- Write the first five multiples of each of the following numbers . ...
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- Which of the following numbers are even and which are odd ? (i) 3...
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- What are prime numbers ? Give ten examples.
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- Write all the prime numbers between 10 and 40
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- (i) Write the smallest prime number. (ii) List all even prime...
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- Find which of the following numbers are primes :
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- Make a list of seven consecutive numbers , none of which is prime .
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- (i) Is there any counting number having no factor at all ? (ii) Fi...
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- What are composit numbers ? Can a composite number be odd ? If yes. Wr...
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- What are co-primes ? Write all the pairs of twin primes between 50 and...
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- What are co-primes ? Give examples of five pairs of co-primes . Are co...
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- Express each of the following numbers as the sum of two odd primes . ...
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- Express each of the following odd numbers as the sum of three odd prim...
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- Express each of the following numbers as the sum of twin primes : ...
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- Which of the following statements are true ? (i) 1 is the smalle...
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