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Binomial theorem: Divisibility shortcut SE8: let f(n)=3^2n+3^n+1, prove f(100) is divisible by 13
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Binomial theorem: Divisibility shortcut SE8: let f(n)=3^2n+3^n+1, prove f(100) is divisible by 13 Support the channel:
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Binomial theorem: Divisibility shortcut SE8: let f(n)=3^2n+3^n+1, prove f(100) is divisible by 13
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Binomial theorem: Divisibility shortcut SE7: find the unit's place of 53^53-33^3?
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