33 lines
481 B
Lua
33 lines
481 B
Lua
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-- Lua 5 version of a Prime Number Finder
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-- haplo@mindstab.net
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function primes(max)
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cnt = 3
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while cnt <= max do
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sq = math.sqrt(cnt)
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isp = 1
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i = 3
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while i <= sq and isp ~= 0 do
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isp = math.mod(cnt, i)
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i = i+2
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end
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if isp ~= 0 then
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print(cnt)
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end
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cnt = cnt + 2
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end
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end
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argc = table.getn(arg)
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if argc < 1 then
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print("Usage: primeslua [Max Num]")
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else
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max = tonumber(arg[1])
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if not max then
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print("Invalid Max Num")
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else
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primes(max)
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end
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end
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