greatest number of 4 digits which is a perfect square
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greatest 4-digit number which is a perfect square is 9801
Haider786:
how do u know
9801 is perfect square
The square of any 3-digit number is either a 5 digit or a 6 digit number.
Eg- 100*100= 10000 (5 digit)
999*999= 998001 (6 digit)
Hence, the largest 4 digit perfect square shall be the square of the largest 2 digit number i.e. 99.
Hence, 99*99= 9801.
Therefore, the answer is 9801
Eg- 100*100= 10000 (5 digit)
999*999= 998001 (6 digit)
Hence, the largest 4 digit perfect square shall be the square of the largest 2 digit number i.e. 99.
Hence, 99*99= 9801.
Therefore, the answer is 9801
thank-you so much for answering.
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hu
Answered by
6
let us find.
greatest 4 digit number is =9999
now we find its square root.
! 9999!
wait a min after finding square root I answer further. if you find square root of 9999 by long division method you get 198 as remainder and just subtract 198 from 9999 you get 9801 which is greatest four digit square number.whose cube root is 99.
greatest 4 digit number is =9999
now we find its square root.
! 9999!
wait a min after finding square root I answer further. if you find square root of 9999 by long division method you get 198 as remainder and just subtract 198 from 9999 you get 9801 which is greatest four digit square number.whose cube root is 99.
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