 12.
 a. List the prime numbers from 42 to 60. ____________________________________
 b. Natural numbers, 1, 2, 3, 4, 5, ..., may be grouped into three groups. The list in each of three groups had
been started for you. 1st: Name each group. 2nd: Add more numbers to the list until either the list is complete or
you have listed the next 25 numbers.
Name List
unity 1
__________ 2, 3, 5, 7, 11, ___, ___, ___, ___, ___, ___, ___, ___, ___,
___, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___
__________ 4, 6, 8, 9, 10, ___, ___, ___, ___, ___, ___, ___, ___, ___, ___,
___, ___, ___, ___, ___, ___, ___, ___, ___, ___
