This is TeX, Version 3.14159 (Web2C 7.3.1) (format=tex 2000.7.19)  18 FEB 2002 01:31
**\nonstopmode\input primes.tex
(primes.tex
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l.1 \chapter
            {Primes and Congruences}
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l.2 \label
          {ch:primes}
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l.5 \section
            {Prime Factorization}
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l.6 \subsection
               {Prime Numbers}
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l.7 We call positive whole numbers the {\em
                                            natural numbers} and denote
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<recently read> \N 
                   
l.8 them by $\N
               $. Thus
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l.9      $$\N
              = \{1,2,3,4,\ldots\}.$$
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l.11 {\em
          integers}, and write
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l.12 $$\Z
          = \{\ldots, -2, -1, 0, 1,2,\ldots\}.$$
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<recently read> \Z 
                   
l.13 They are denoted by $\Z
                            $ because the German word
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l.17 \begin
           {definition}
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l.18 If $a, b\in \Z
                   $ then ``$a$ divides $b$''
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l.19 if $ac=b$ for some $c\in\Z
                               $.
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[1] )
Output written on primes.dvi (1 page, 1040 bytes).