document.write( "Question 224797: Hello,\r
\n" ); document.write( "\n" ); document.write( "Trying to help my son with maths. never did well at school.
\n" ); document.write( "What is the sequence of 1, 2, 6, 24, 120, 720 and how and why
\n" ); document.write( "Regards
\n" ); document.write( "Martin
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Algebra.Com's Answer #167882 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Those are factorials.
\n" ); document.write( "The last one, 6! (exclamation point is used for factorial) is
\n" ); document.write( "6! = 6*5*4*3*2*1
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