document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=37308>Question 37308</A>: <I><SPAN STYLE=\"word-break: break-all;\"> What is the smallest positive integer that cannot occur as the difference between two positive prime numbers. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #22993 by </B><A HREF=/tutors/aboutme.mpl?userid=fractalier><B>fractalier(6550)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=fractalier><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/cgi-bin/show-face.mpl?user=fractalier><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=22993\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Good problem.  Never heard that one before.  If you look at the list of primes,<BR>\n" );
document.write( "2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, etc.,<BR>\n" );
document.write( "you find that differences of 1, 2, 3, 4, 5, 6, 8, 9, 10, etc., exist but no 7.<BR>\n" );
document.write( "And because all later primes are odd numbers, a difference of seven will not exist there either.<BR>\n" );
document.write( "Thus the answer is 7.  Good problem. </SPAN>\n" );
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