anonymous
  • anonymous
the number of proper divisor of 2520 is ..?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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  • Owlfred
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anonymous
  • anonymous
the number is 2520 see the last digit its 20 , we can divide it by 2, 5 , 10.. so proper divisor is 2 , 5 , 10
anonymous
  • anonymous
bt d ans is 46.......

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anonymous
  • anonymous
how could 46 be a proper divisor of 2520
anonymous
  • anonymous
i mean there are 46 divisors of 2520 ........... and but i dont know how ?
anonymous
  • anonymous
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520
anonymous
  • anonymous
these are the divisor of 2520
anonymous
  • anonymous
yes..........but may i know how did u thought of the answer in 1 minute ..............? i also want that tip........?
anonymous
  • anonymous
see its very easy , we have to check 1 by 1 which number can divide 2520. like 1, 2, 3., 4, 5 , 6 ,7 , 8 , 9 , 10 , ....................
anonymous
  • anonymous
but if i do it like this on my exam ..... i will realy loose my whole paper to this type of question .... did u have any shortcut method for this question becoz i am preparing for my entrance exam ....
anonymous
  • anonymous
ok do you know how to find lcd
anonymous
  • anonymous
no
anonymous
  • anonymous
like we hve 2...2520 2...1260 2...630 2....315 3...105 3...35 5...7 7...1
anonymous
  • anonymous
like this
anonymous
  • anonymous
then what?

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