Question

Greatest five digit number divisible by 9 12 15 18 24

Answer 1

Answer:

99360

Step-by-step explanation:

First find the LCM of 9,12,15,18,24.

 3  { 9,12,15,18,24

 3 {3,4,5,6,8

 2 {1,4,5,2,8

 2 {1,2,5,1,4

 2 {1,1,5,1,2

 2 {1,1,5,1,1

 5 {1,1,1,1,1

3x3x2x2x2x2x5 = 720

Secondly divide the biggest 5 digit number (99999) by 720

      __138_____  

720{    99999

      { -  99360

          -- -- - - -

              639

Finally, subtract the biggest 5 digit number (99999) by 639

99999-639= 99360

You can try dividing 99360 by 9,12,18,15 and 24 and see if they are divisible for proof this is correct!

Hope this worked!

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