13 lines
224 B
Text
13 lines
224 B
Text
function isprime(n)
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if n<2 then return false end
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for i=2,math.sqrt(n) do
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if n%i==0 do return false end
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end
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return true
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end
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for i = 1,20 do
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if isprime(i) then
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io.write(i,'\t')
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end
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end
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