document.write( "Question 1182800: How many pairs (a,b) of positive integers are there such that a and b are factors of 6^6 and a is a factor of b? \n" ); document.write( "
Algebra.Com's Answer #812889 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "------------------------------------------------------------ \n" ); document.write( "Yes; I misread the problem, reading it to say that the product of a and b is 6^6. \n" ); document.write( "So my response below is not appropriate for the problem as given. \n" ); document.write( "------------------------------------------------------------ \n" ); document.write( "I have no idea what problem the other tutor was solving; the way I read the problem, her solution is not of the given problem. \n" ); document.write( "We have the number \n" ); document.write( "a and b are factors of that number, so a and b are numbers of the form \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "where p+r=6 and q+s=6. \n" ); document.write( "We also need to have a being a factor of b. That means \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "The requirements p+r=6 and p<=r give us 4 choices for p -- 0, 1, 2, or 3. \n" ); document.write( "Likewise the requirements q+s=6 and q<=s give use the same 4 choices for q. \n" ); document.write( "So the total number of pairs (a,b) that satisfy the conditions of the problem is 4*4=16. \n" ); document.write( " \n" ); document.write( " |