Q 1: Two relatively prime numbers need not be prime numbers. (True/False) True False

Q 2: ______ is even prime number. 2 4

Q 3: A pair of primes are said to twin primes is they differ by 2.(True/False) True False

Q 4: G.C.D of 36 and 48 is ______. 8 6

Q 5: If G.C.D. of a and b is x, then G.C.D. of ma and mb is ____ given a, b and m are natural numbers. max mx

Q 6: The number of factors of 72 is _____. 10 12

Q 7: Two numbers are relatively prime if their G.C.D. is 1. (True/False) False True

Q 8: If p is a perfect number the sum of all its factors is ____. p/2 2p

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Question 10: This question is available to subscribers only!

