Maths Challenge

7 Responses to Maths Challenge

1. Eleni says:

   6th May 2020 at 12:09 pm

   28 because the factors of 28 are 1,2,4,7and 14 together they add up to 28.

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   • aburns says:

     7th May 2020 at 10:53 am

     Well done Eleni! This is the correct answer.
     3 house points for Griffins. 🙂

     Reply
2. Elpida says:

   6th May 2020 at 1:16 pm

   12 because the factors are 1,2,3 and 6, and if you add them altogether you will get 12.

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   • Ewen :) says:

     6th May 2020 at 3:32 pm

     You forgot that 4 is a factor of 12.

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     • aburns says:

       7th May 2020 at 10:52 am

       Well spotted!

       Reply
3. Yeseo (• ᗜ •) says:

   7th May 2020 at 9:27 am

   I thought of 28 as well because 1+2+4+7+14=28.
   1+2+4+7+14
   (3)+4+7+14
   (3)+(11) +14
   (14)+14
   28

   Also, I figured out that the third perfect number would be around 500.

   It is 496 I think! I’ll check:
   1+2+4+8+16+31+62+124+248=496
   (3)+4+8+16+31+62+124+248=496
   (3)+(12)+16+31+62+124+248=496
   (3)+(12)+(47)+62+124+248=496
   (3)+(12)+(47)+(186)+248=496
   (15)+(233)+248=496
   (248)+248=496
   (496)=496

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4. aburns says:

   7th May 2020 at 10:55 am

   You are absolutely right!
   Fantastic systematic calculating Yeseo. That’s another 3 house points for Griffins.
   Keep up the great work Griffins!

   Reply