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2. Factors, Think about the situation:, , The teacher gives Velavan two numbers 8 and 20 and asks him to write them as a product, of two numbers. Velavan, with his mental math skills and also using the multiplication, tables, quickly finds that 8 = 2 x 4; 20 = 2 x 10 and 4 x 5. From this, we can say that 2, and 4 are factors of 8 and also 2, 4, 5 and 10 are factors of 20. We can also write 8 as, 1 x 8 and hence conclude that 1 and 8 are also factors of 8., , From the above examples, we observe that,, , e A factor is a number that divides the given number exactly, (gives remainder zero)., , e Every number has two factors that is 1 and the number itself., e Every factor of a given number is less than or equal to that number., , v7 ooo, , (i) Say True or False,, 4) The smallest odd natural number is 4., b) 2 Is the smallest even whole number., €) 12345 + 5063 Is an odd number., d) Every number is a factor of itself,, e) A number which is a multiple of 6 is also a multiple of 2 and 3., (ii) Is 7, a factor of 27?, (ili) Is 12, @ factor or a multiple of 12?, (iv) Is 30, a factor or a multiple of 10?, (vy) Which of the following numbers has 3 as a factor?, a)8 b) 10 c) 12 d) 14, (vi) The factors of 24 are 1, 2, 3,©, 6,©,12, and 24. Find the missing ones., , (vii) Look at the following numbers carefully and find the missing multiples., , (7 mv rs