document.write( "Question 1194009: Choose all the descriptions for natural numbers n that have 3 divisors.\r
\n" ); document.write( "\n" ); document.write( "1- n= p^2 * q (for any two distinct primes p and q)
\n" ); document.write( "2- n= p * q (for any two distinct primes p and q)
\n" ); document.write( "3- n= p * q * r (for any three distinct primes p,q and r)
\n" ); document.write( "4- n= p^2 (for any prime number)\r
\n" ); document.write( "\n" ); document.write( "So every natural number has at least 2 factors - 1 and itself. So numbers with 3 factors then have to be perfect squares of prime numbers.\r
\n" ); document.write( "\n" ); document.write( "I selected 4- n= p^2 (for any prime number)\r
\n" ); document.write( "\n" ); document.write( "So they only have 1 distinct prime factor, and the question says select ALL.
\n" ); document.write( "Am I missing any other description that applies?\r
\n" ); document.write( "\n" ); document.write( "Thanks\r
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Algebra.Com's Answer #826089 by ikleyn(52778)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "If the question is\r
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document.write( "    \"Choose all the descriptions for natural numbers n that have \"highlight%28EXACTLY%29\" / \"highlight%28PRECISELY%29\"  3  divisors\"\r\n" );
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\n" ); document.write( "\n" ); document.write( "then your answer \" option  4 \"  is correct.\r
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\n" ); document.write( "\n" ); document.write( "As the question is worded in the post,  it may have hidden  EXTENDED  meaning,  and then the the answer  \" ALL \"  is applicable.\r
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\n" ); document.write( "\n" ); document.write( "I understand that the  \" option 4 \"  is the first answer which comes to the mind,
\n" ); document.write( "but the answer  \" all options \"  is also possible,  formally speaking.\r
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\n" ); document.write( "\n" ); document.write( "So,  this question/problem is consciously and ideally constructed in a way to catch  (to cop) \r
\n" ); document.write( "\n" ); document.write( "a person at exam,  with all the ensuing consequences . . . \r
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