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![[Post New]](/templates/default/images/icon_minipost_new.gif) 24 Mar 2008 12:25:21 IST
Accepted Answer [?]
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..so in 1)..
we want all no.s of form 4m+1..form that divide 3630..
lets factorize it..
u get 3630 = 2.3.5.11.11
now we can write
3 as 4m-1..
5 as 4n+1..
11 as 4p-1..
we want odd no. so remove two..
look..4m-1 * 4p-1..gives 4m+1 form..
(4p-1) ^2 of 11 also is 4m+1 form..so it gives this form wen power is even..
so cases..
3*5*11...
3*11..
5 only....
11^2.....
5*11^2...
and so on..
2)
u actually want factors that cointain at least one 2 and 5..
5400 = 2^3 . 3^3 . 5^2..
so include options according to condition..and find the answer..
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Diamonds r formed under greatest pressures..
so r the champs.
Kriteesh..
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this reply: 5 points
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Moderation Team
