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Unit 1 Review
Period 2
Factor Pairs
1. List all the factor pairs for 36. Do not use the
number 1 in any of your factor pairs.
#1 Answer
Answer:
2x18
3x12
4x9
6x6
18x2
12x3
9x4
Prime & Composite
2. Explain what a prime number is and give an
example.
3. Explain what a composite number is and give
an example.
#2 and #3 Answers
2. A prime number has exactly two factors, one
and itself. 7 is a prime number.
3. A composite number has more than two
factors. 28, 36 and 100 are composite numbers.
Factor Captor
4. What is a good move for you to make in the
factor captor game? Why?
#4 Answer
A good move is a prime number or a number
that does not have many factors. If you choose a
prime number you get that amount of points
and your partner only gets 1 if it is uncovered. It
is always a good first move if you get more
points than your opponent.
Prime Factorization
5. What is the prime factorization of 48?
Write your answer in expanded and exponential
form.
#5 Answer
2x2x2x2x3
4
2 x3
Exponential Notation
Fill in the missing numbers.
2
4
6. = ____
7. 62 = ____
2
___
8. 9x9=
9. 64 = ___ 2
2
10. 10x10= ___
#6-10 Answers
6. 16
7. 36
8. 92
2
8
9.
2
10
10.
Divisibility Rules
• Make sure to study all of the rules!
11. Create a number that is greater than 100
and divisible by 3.
12. Create a number greater than 100 that is
divisible by 6.
#11 & #12 Answers
11. 231, 105, 132 (Make sure the sum of the
digits is divisible by 3)
12. 132, 108; 114 (The sum of the digits should
be divisible by 3 and it should end in an even
number)