LogFAQs > #929122309

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Topic	Why is x^5 - x always divisible by 10 for any positive integer x?
FLOUR 10/23/19 12:18:40 AM #15:	You guys nailed it. Actually, x^p - x is divisible by 2p whenever p is an odd prime. Though the general proof is way more difficult than for specific values. --- Long live the Hud! <cite>FLOUR posted [p:929122309] in Why is x^5... [t:78102768]...</cite> <quote>You guys nailed it. Actually, x^p - x is divisible by 2p whenever p is an odd prime. Though the general proof is way more difficult than for specific values. --- Long live the Hud!</quote> ... Copied to Clipboard!
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