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author | Jesse Luehrs <doy@tozt.net> | 2009-05-13 23:32:40 -0500 |
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committer | Jesse Luehrs <doy@tozt.net> | 2009-05-13 23:32:40 -0500 |
commit | 7e7b56db42ceb8d2b8973eae678fa4b58d5d3659 (patch) | |
tree | 7a5cb816809d632e30227c1e39485ed63b500e80 /7.lua | |
download | projecteuler-7e7b56db42ceb8d2b8973eae678fa4b58d5d3659.tar.gz projecteuler-7e7b56db42ceb8d2b8973eae678fa4b58d5d3659.zip |
add old solutions
Diffstat (limited to '7.lua')
-rw-r--r-- | 7.lua | 19 |
1 files changed, 19 insertions, 0 deletions
@@ -0,0 +1,19 @@ +function isprime(n) + if n < 2 then return false end + if n == 2 then return true end + if math.fmod(n, 2) == 0 then return false end + for i = 3, math.ceil(math.sqrt(n)), 2 do + if math.fmod(n, i) == 0 then return false end + end + return true +end + +local i = 2 +local primes = 0 +while true do + if isprime(i) then + primes = primes + 1 + if primes == 10001 then print(i); break end + end + i = i + 1 +end |