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Factors multiples
 

Factors multiples

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    Factors multiples Factors multiples Presentation Transcript

    • 11FACTORS&MULTIPLESR.USHAR.USHATGT ( MATHEMATICS)TGT ( MATHEMATICS)KV,GILL NAGARKV,GILL NAGARCHENNAI.CHENNAI.Powerpoint hosted on www.worldofteaching.comPlease visit for 100’s more free powerpoints
    • 22ARRANGEMENT OF STARSTake 6 stars and arrangethem in differentways
    • 331 Row × 6 Stars/Row = 6 Stars
    • 443 Rows × 2 Stars per row = 6 stars
    • 5522 RowsRows ×× 33 stars per row =stars per row = 66 starsstars
    • 666 Rows × 1 Star/Row= 6 Stars
    • 77As we can see, 6 can be written asproduct of two numbers in manyways: 6 = 1 × 66 = 2 × 36 = 3 × 26 = 6 × 11, 2, 3 and 6 are exact divisors of 6
    • 8ARRANGEMENT OF FOOTBALLSTake 8 footballs and arrangethem in differentways
    • 99Arrangement of 8 indifferent ways1 Row × 8 Balls/Row = 8 Balls
    • 10102 Rows × 4 Balls / Row = 8 Balls
    • 11114 Rows ×2 Balls / Row =8 Balls
    • 12128 Rows × 1 Ball / Row =8 Balls
    • 13131, 2, 4 and 8 areexact divisors of 8.
    • 147 divides 28 exactly andgives Quotient 4 andRemainder 0.28 ÷ 7 = 4
    • 154 divides 28 exactly andgives Quotient 7 andRemainder 0.28 ÷ 4 = 7
    • 1628 divides 28 exactly andgives Quotient 1 andRemainder 0.28 ÷ 28 = 1
    • 1728 ÷ 1 = 2828 ÷ 4 = 728 ÷ 7 = 428 ÷ 28= 114728FACTORS OF 28
    • 1816 ÷ 1 = 1616 ÷ 2 = 816 ÷ 4 = 416 ÷ 8 = 216 ÷ 16 = 112481FACTORS OF 16
    • 19FACTORA factor of a number is an exactdivisor of that number i.e. the factorleaves remainder 0 when it dividesthe number.
    • 204 × 5 = 204 and 5 are factors of 20. We canalso say that 20 is multiple of 4 and5.In 2 × 12 = 24,2 and 12 are factors of 24.24 is the multiple of 2 and 12.So, a number is a multiple of itsfactors.
    • 21Multiples of 2 =2,4,6,8,10,12,14,16,18,20,22,24…Multiples of 3 =3,6,9,12,15,18,21,24,27,30,33,36,…Multiples of 15 =15,30,4,60,75,90,105,120,135,……The number of multiples ofa given number is infinite.
    • 22FACTORS OF SOMENUMBERS8 = 1,2,4,816 = 1,2,4,8,1625 = 1,5,25
    • 234 × 5 = 20Factors Multiple
    • 24POINTS TO REMEMBER• 1 is a factor of every number.• Every factor of a number is an exactdivisor of that number.• Every factor is less than or equal to thegiven number.• Number of factors of a given number arefinite.
    • 25• Every multiple of a number is greaterthan or equal to that number.• The number of multiples of a givennumber is infinite.• Every number is a multiple of itself.POINTS TO REMEMBERcontd
    • 2626FACTOR OR MULTIPLE?FACTOR OR MULTIPLE?For each of numbers in the statements, selectFor each of numbers in the statements, selecteither multiple [M] or factor [F]either multiple [M] or factor [F] 3434 × 5 = 170× 5 = 170[[FF] [] [MM] [] [FF] [] [MM] [] [FF] [] [MM]] 25 × 4 = 10025 × 4 = 100[[FF] [] [MM] [] [FF] [] [MM] [] [FF] [] [MM]] 90 × 10 = 90090 × 10 = 900[[FF] [] [MM] [] [FF] [] [MM] [] [FF] [] [MM]] 45 × 6 = 27045 × 6 = 270[[FF] [] [MM] [] [FF] [] [MM] [] [FF] [] [MM]] 7 × 30 = 2107 × 30 = 210[[FF] [] [MM] [] [FF] [] [MM] [] [FF] [] [MM]]
    • 2727State whether the followingState whether the followingstatements arestatements are TRUETRUE oror FALSEFALSE1. 1 is a factor of every number.1. 1 is a factor of every number. FF TT2. The largest factor of any number is the number itself.2. The largest factor of any number is the number itself. FF TT3. Number of factors of a given number is infinite.3. Number of factors of a given number is infinite. FF TT4.The number of multiples of 5 is 10.4.The number of multiples of 5 is 10. FF TT5.The factors of 65 are 1, 5 and 13 only.5.The factors of 65 are 1, 5 and 13 only. FF TT( Click ‘F’ for false and ‘T’ for true )( Click ‘F’ for false and ‘T’ for true )
    • 2828THANK YOU
    • 2929CORRECTCORRECT
    • 3030WRONGWRONG