From 7e7b56db42ceb8d2b8973eae678fa4b58d5d3659 Mon Sep 17 00:00:00 2001 From: Jesse Luehrs Date: Wed, 13 May 2009 23:32:40 -0500 Subject: add old solutions --- 7.lua | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 7.lua (limited to '7.lua') diff --git a/7.lua b/7.lua new file mode 100644 index 0000000..d5af641 --- /dev/null +++ b/7.lua @@ -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 -- cgit v1.2.3