Consider the numbers 13, 16, 27, and 41. 

a.    Which of these numbers are prime? How do you know?
b.    Which of these numbers are composite? How do you know?(2 points)
BoldItalicUnderlineIncrease indentDecrease indentFormula keypadUndoRedo

a. The number 13 is prime because it is only divisible by 1 and itself. It cannot be divided evenly by any other number.

The numbers 16 and 27 are composite because they have factors other than 1 and themselves.
The number 41 is prime because it is only divisible by 1 and itself.
b. The numbers 16 and 27 are composite because they have factors other than 1 and themselves.
The number 13 and 41 are prime because they are only divisible by 1 and themselves.