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\(Show~ that~if~ x,y,z~are~integers~such~that~x^3 + 5y^3 = 25z^3,~then~x = y = z = 0.\)

 Jul 20, 2018
 #1
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Help me any moderator, please, please!

 Jul 20, 2018
edited by Guest  Jul 20, 2018
 #2
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Hint: prove that x, y and z have to be divisible by 5

 Jul 20, 2018

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