A : The factors of 12 are 1, 2, 3, 4, 6, and 12, because each of those divides 12 without leaving a remainder (or, alternatively, each of those is a counting number that can be multiplied by another counting number to make 12).
B : Explanation: The prime numbers less than 15 are 2, 3, 5, 7, 11, and 13.
C : The even numbers that are less than 15 are the following: 2, 4, 6, 8, 10, 12, and 14.
Answers & Comments
Answer:
A : The factors of 12 are 1, 2, 3, 4, 6, and 12, because each of those divides 12 without leaving a remainder (or, alternatively, each of those is a counting number that can be multiplied by another counting number to make 12).
B : Explanation: The prime numbers less than 15 are 2, 3, 5, 7, 11, and 13.
C : The even numbers that are less than 15 are the following: 2, 4, 6, 8, 10, 12, and 14.