Practice Page 1

 Q1. Write all the factors of the following numbers : a.   15 - _________________________________________________ b.   22 - _________________________________________________ c.   36 - _________________________________________________ d.   45 - _________________________________________________ Q2. Write next 4 multiple of the following numbers: a.   10 - ________     ________    ________     ________ b.   12 - ________     ________    ________     ________ c.   16 - ________     ________    ________     ________ d.   22 - ________     ________    ________     ________ Q3. Write the number that has exactly only one factor. ___________ Q4. Can there be any natural number that does not have factor at all? ___________ Q5. Find all the multiple of 13 up to 100. __________________________________________________________ Q6. Write all the factors of 120. ____________________________________________________ ____________________________________________________

Practice Page 2

 Q1. Fill in the blanks. a.   1 is a factor of every______________. b.   Every number is a multiple of_________________. c.   Every multiple of a number is __________ than or equal to the given number. d.   Number of multiples of a given number is ____________. e.   Number of factors of a given number is______________. f.    Every factor of a number is an exact _________ of given number. g.   Every factor is less than or __________ to the given number. Q2. Write the multiples of 8 which are greater than 30 and less than 80. ___________________________________________________________ Q3. Find the missing factors. a.   6 × ___ = 36 b.   9 × ___ = 81 c.   ___ × 8 = 64 d.   ___ × 5 = 35 e.   6 × ___ = 42 f.    12 × ___ = 60

Practice Page 3

 Q1. Write all the possible factors of 38. _______________________________ Q2. Any number is a factor of itself. True/False ________ Q3. Write the first five multiples of 22. ____________________________________________________ Q4. Match the items in column I and column II COLUMN –I COLUMN –II 1, 5, 11, 55 Multiple of 4 4, 8, 12, 16 Factor of 55 1, 3, 5, 15 Multiple of 8 11, 22, 33, 44 Factor of 15 8, 16, 24, 32 Multiple of 11 Q5. Circle the numbers below which are multiples of 45. 270, 295, 305, 315, 333, 360, 400 Q6. Circle the numbers below which are factors of 65. 1, 4, 5, 9, 13, 45, 65