**
15-110 Sections G-J / Spring 2010 / Quiz 3
3 Parts / 6 to 7 Minutes Per Part **

**(One Part per Day)**

**Part ****
1)
Write isPrime and nthPrime.**

**Part 2) Write isPerfect and nthPerfect.**
(Students were provided with a brief description of perfect numbers -- that is,
positive integers that equal the sum of their proper divisors.)

**Part 3) Write isOddish and nthOddish.**
(Students were provided with a brief description of "oddish" numbers (an
invented term) -- that is, positive integers that contain more odd digits than
even digits.)