Truncatable primes: Difference between revisions

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@@ Line 2,460: / Line 2,460: @@
 # Email   : <calmosoft@gmail.com>
-for n = 1 to 1000000
+for n = 1000000 to 1 step -1
     flag = 1
     flag2 = 1
@@ Line 2,480: / Line 2,480: @@
        if flag = 1
           nend = n
+          exit
        ok
     ok
@@ Line 2,485: / Line 2,486: @@
 see "Largest left truncatable prime : " + nend + nl
-for n = 1 to 1000000
+for n = 1000000 to 1 step -1
     flag = 1
     strn = string(n)
@@ Line 2,498: / Line 2,499: @@
     if flag = 1
        nend = n
+       exit
     ok
 next