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The smallest composite number is ..........

The smallest composite number is ............

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The smallest odd prime number is

The smallest whole number is ............ .

The smallest natural number is ....... .

Fill in the blanks : (a) A number which has only two factors is called a ______. (b) A number which has more than two factors is called a ______. (c) 1 is neither ______ nor ______. (d) The smallest prime number is ______. (e) The smallest composite number is _____. (f) The smallest even number is ______.

The smallest even whole number is

What is a composite number ?

The smallest whole number is

What is a composite number?

RD SHARMA-PLAYING WITH NUMBERS-All Questions
  1. Three tankers contain 403 litres, 434 litres and 465 litres of dies...

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  2. A number which has only two factors is called a ...........

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  3. The smallest composite number is ............

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  4. Two perfect numbers are ............ and ............

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  5. The HCF of two consecutive odd numbers is ............

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  6. The prime triplet and co-prime is ............

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  7. The greatest five digit number exactly divisible by 9 and 13 is 999...

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  8. From the set {2, 3, 4, 5, 6, 7, 8, 9}, how many pairs of co-primes can...

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  9. If the number 2345 of 60b is exactly divisible by 3 and 5, then the...

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  10. The HCF of 100 and 101 is 10100          (b)  1001        (c)  1...

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  11. The greatest four digit number which when divided by 18 and 12 leav...

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  12. The GCD of two numbers is 17 and their LCM is 765. How many pairs o...

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  13. The number of factors of 1080 is 32           (b)   28           (c...

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  14. The HCF of first 100 natural numbers is 2        (b)  100        (c...

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  15. The least number exactly divisible by 36 and 24 is 144         (...

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  16. Find the HCF of all natural numbers from 200 to 478

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  17. If x is prime, y is a composite number such that x+y=240 and their LCM...

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  18. The LCM of two numbers is 1024 and one of them is a prime number, F...

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  19. The GCD of two numbers is 4 and their LCM is 400. How many pairs of va...

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  20. Find the greatest number that can divide 101 and 115 leaving remain...

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