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1. For some integer 'm' every odd integer is of form:

2. From among a minimum of how many integers can you say that one is divisible by 3?

3. H. C. F. of 96 and 404 is

4. Write the HCF of the smallest composite number and the smallest even number

5. HCF of the smallest composite number and the smallest prime number is

6. For some integer m every odd integer is of the form

7. If n is a positive integer , then n2 – n is always

8. What is the HCF of 235 and 395?

9. For some integer m every odd integer is of the form

10. What is the HCF of 1076 and 584

11. H.C.F. of two consecutive even numbers is:

12. How many prime factors are there in prime factorization of 5005?

13. If the H. C. F of 210 and 55 is expressible in the form 2105 + 55y then value of y is

14. 4052 = 420x + 272 then value of x is

15. There are 135 partcipants in English and 165 in Mathematics in a seminar. What is the minimum number of rooms required to seat them if each room must have the same number of participants from each of the two subjects

16. What is the HCF of 161 and 303?

17. For any two positive integers a and b, there exist unique integers q and r such that a = bq + r, 0 ≤ r < b, if b = 4 then which is not the value of r?

18. For a=n and b=3, which of the following represents the correct mathematical form of Euclid's division lemma?

19. Euclid's division lemma states that if a and b are two positive integers, then there exist unique integers q and r such that:

20. Complete the statement : Any positive odd integer is of the form 6q + 1, or 6q + 3, or ___________ , where q is some integer