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 Interactive Checkpoint
 Abundant Number:  A number in which the sum of all its proper divisors is greater than the number itself.

Answer the following questions about abundant numbers.

Select the answer for part (a) and enter the answer for part (b) in the left column and press tab to check your result.

Graded Response

 a) Is 16 an abundant number ?  a)
 b) Identify a nonprime abundant number between 20 and 30  b)