Thursday, April 23, 2009

Find a perfect square, cube and fifth power

Find a number that is a perfect square, cube and fifth power and is less than 2*10^14
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  1. Another puzzle about prime numbers (yes, i've read books about Riemann recently). If the number is a perfect square, cube and fifth power then it must be x ^ (2*3*5) < 2*10^14...

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