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Piprimes: Difference between revisions
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</pre>
=={{header|Nim}}==
<lang Nim>import strutils
func isPrime(n: Natural): bool =
if n < 2: return false
if n mod 2 == 0: return n == 2
if n mod 3 == 0: return n == 3
var d = 5
while d * d <= n:
if n mod d == 0: return false
inc d, 2
if n mod d == 0: return false
inc d, 4
result = true
var pi = 0
var n = 1
while true:
stdout.write ($pi).align(2), if n mod 10 == 0: '\n' else: ' '
inc n
if n.isPrime:
inc pi
if pi == 22: break
echo()</lang>
{{out}}
<pre> 0 1 2 2 3 3 4 4 4 4
5 5 6 6 6 6 7 7 8 8
8 8 9 9 9 9 9 9 10 10
11 11 11 11 11 11 12 12 12 12
13 13 14 14 14 14 15 15 15 15
15 15 16 16 16 16 16 16 17 17
18 18 18 18 18 18 19 19 19 19
20 20 21 21 21 21 21 21 </pre>
=={{header|PARI/GP}}==
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