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Given that the N is a 4 digit positive integer and we plan to plant exactly N trees in a memorial park. How many distinct values of N are possible such that each row of trees planted has as many trees as the number of coloums?
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smallest number which have 4 digit square is 32; 32*32=1024

largest number which have 4 digit square is 99; 99*99=9801

so we have to find the numbers between 32 and 99(both inclusive)

99-32+1=68
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