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Increase in number of factors. (Posted on 2010-10-05) Difficulty: 2 of 5
If n has 15 factors (1 and n inclusive ) and 2n has 20 factors. What is the number of factors of 4n?

Also, what can be the number of factors of 5n ?

See The Solution Submitted by Vishal Gupta    
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  Subject Author Date
SolutionsolutionCharlie2010-10-05 17:22:19
SolutionJer2010-10-05 14:55:03
Some ThoughtsPossible solutionbroll2010-10-05 14:27:58
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