Advance Maths Chapter 3 @ Indefatigables 25, DBSSS,HSLC 25 DMDMA

• a

• b

• ab

Two non-zero integers 'a' and 'b' are called relatively prime if

• GCD (a, b) = ab

• GCD (a, b) = 1

Find the GCD of 56 and 72

• 16

• 10

• 2

• 8

Which of the following is not a perfect number?

• 28

• 496

• 12

• 6

Which of the following is incorrect?

• An integer

• A rational number

• An irrational number

• A real number

• Perfect Number

• Prime Number

• Composite Number

• Relatively Prime Integer

Two integers 'a' and 'b' both of which are non zero will be relatively prime to each other if and only if there exists two integers 'x' and 'y' such that