document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1189378>Question 1189378</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A number is chosen uniformly at random from among the positive integers less than 10^8. Given that the sum of the digits of the number is 9, what is the probability that the number is prime? </SPAN>\n" );
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document.write( "The probability is zero, since this number is divisible by 9 (apply the rule of divisibility by 9),\r<BR>\n" );
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document.write( "and, hence, is a composite number (not a prime).\r<BR>\n" );
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