The difference between the smallest square of a number consisting of all digits 1 to 9 and the largest of the same.

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C. Sivasankaran

  • May 15th, 2006
 

Smallest square of a number consisting of numbers 1-9 will the smallest number's square. Therefore smallest square will be 123456789^2

Simillary Largest square will be 987654321^2

Diff = 987654321^2 - 123456789^2

which is in the form of a^2 - b^2

Therefore answer is (a+b)(a-b) i.e 1111111110 x 864197532

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