maths

The equation has no non-negative integral solutions and please find the proof below:

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2007-08-08 17:21:12 補充：
Anyway, to know 2011 is a prime no. we follow these steps:1) Estimate the square root of 2011, which is about 452) From 2 to 45, try all prime numbers to see if any of them can divide 2011.3) If no one can, then 2011 is a prime number.