Q 1: The number of factors of 72 is _____. 12 10

Q 2: L.C.M. of 12 and 8 is _____. 36 24

Q 3: If A and B are two natural numbers and L and G are their L.C.M. and G.C.D. then relation between these four is A*B = L*G. (True/False) False True

Q 4: 4^{9} is ____ number. Even number Odd number

Q 5: If a and b are coprimes their G.C.D. = ____. 2 1

Q 6: If p and q are two numbers and r is G.C.D. then L.C.M. = (p.q/r).(True/False) False True

Q 7: If two numbers do not have any common factors other than 1 they are called relatively prime or coprimes. (True/False) True False

Q 8: 35 and 21 are relatively prime numbers. (True/False) False True

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