Syntactic Confectionery Delight PerlMonks

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Heres my go without reviewing your code first.

```use strict;
use warnings;
sub stringify { \$_[0]->() };

sub make_sub {
my (\$N) = ( my @f = sort {\$a <=> \$b} @_ );
return bless sub{ for(;;\$N++){ \$N % \$_ || return \$N++ for @f }  };
}

@ARGV=(2,3,5) unless @ARGV;
@ARGV=sort @ARGV;

{
local \$"=", ";
local \$\="\n";
print "Factors: @ARGV";

foreach  (@ARGV) {
my \$f=make_sub(\$_);
print "F(\$_) = @{[(\$f) x 25]}";
}
my \$o=make_sub(@ARGV);
print "R(@ARGV) = @{[(\$o) x 25]}";
print "----";
}

__END__

Factors: 2, 3, 5
F(2) = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34,
+ 36, 38, 40, 42, 44, 46, 48, 50
F(3) = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51
+, 54, 57, 60, 63, 66, 69, 72, 75
F(5) = 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80,
+85, 90, 95, 100, 105, 110, 115, 120, 125
R(2, 3, 5) = 2, 3, 4, 5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22,
+24, 25, 26, 27, 28, 30, 32, 33, 34
----

Update: It looks like this is the lazy version of the iterative solution by kvale.
Update2: BrowserUk correctly points out the sort needs to be numeric, which ive fixed.

Update3: I tweaked my original a little to support a DESTROY method, and added a second more efficient variant.

```use strict;
use warnings;
sub stringify { \$_[0]->() };

sub lcf {
my @f=sort {\$a<=>\$b} @_;
my @v=shift @f;
for my \$f (@f) {
push @v,\$f
unless grep !(\$f % \$_),@v;
}
@v
}

sub make_sub1 {
my (\$N) =  my @f = lcf( @_ );
return bless sub{
return "Simple Factors = [ @f ] Cur = \$N" if @_;
for(;;\$N++){ \$N % \$_ || return \$N++ for @f }
};
}

sub make_sub2 {
my @f = my @v = lcf( @_ );
return bless sub {
return "Smart  Factors = [ @f ] Cur = [ @v ]" if @_;
my (\$min,\$ret);
do {
\$min = 0;
\$v[\$min] >= \$v[\$_] and \$min=\$_ for 1..\$#v;
\$ret = \$v[\$min];
\$v[\$min] += \$f[\$min];
} while grep !(\$ret % \$f[\$_]), 0 .. \$min-1;
return \$ret;
};
}

sub DESTROY {
my \$s=shift;
warn "DESTROY: \$s ",\$s->(1),"\n";
}

@ARGV=(2,3,4,5,6) unless @ARGV;
@ARGV=sort @ARGV;

{
local \$"=", ";
local \$\="\n";
print "Factors: @ARGV";

foreach  (@ARGV) {
my \$f=make_sub1(\$_);
print "F(\$_) = @{[(\$f) x 25]}";
}
for my \$o ( make_sub1(@ARGV),make_sub2(@ARGV)) {
print "R(@ARGV) = @{[(\$o) x 25]}";
}
print "----";
}
__END__
DESTROY: main=CODE(0x1ac5130) Simple Factors = [ 2 ] Cur = 51
DESTROY: main=CODE(0x1ac5130) Simple Factors = [ 3 ] Cur = 76
DESTROY: main=CODE(0x1ac5130) Simple Factors = [ 4 ] Cur = 101
DESTROY: main=CODE(0x1ac5130) Simple Factors = [ 5 ] Cur = 126
DESTROY: main=CODE(0x1ac5130) Simple Factors = [ 6 ] Cur = 151
DESTROY: main=CODE(0x1ac21c8) Smart  Factors = [ 2, 3, 5 ] Cur = [ 36,
+ 36, 35 ]
DESTROY: main=CODE(0x1c0535c) Simple Factors = [ 2, 3, 5 ] Cur = 35
Factors: 2, 3, 4, 5, 6
F(2) = 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34,
+ 36, 38, 40, 42, 44, 46, 48, 50
F(3) = 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51
+, 54, 57, 60, 63, 66, 69, 72, 75
F(4) = 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 6
+8, 72, 76, 80, 84, 88, 92, 96, 100
F(5) = 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80,
+85, 90, 95, 100, 105, 110, 115, 120, 125
F(6) = 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96,
+102, 108, 114, 120, 126, 132, 138, 144, 150
R(2, 3, 4, 5, 6) = 2, 3, 4, 5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21
+, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34
R(2, 3, 4, 5, 6) = 2, 3, 4, 5, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21
+, 22, 24, 25, 26, 27, 28, 30, 32, 33, 34
----
---
demerphq

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