Identify each number as Prime (only 2 factors) or Composite (more than 2 factors).
1.5
Prime
2.10
Composite
3.13
Prime
4.21
Composite
5.29
Prime
6.33
Composite
7.2
Prime
8.50
Composite
Section 3: Prime Factorization
Find the prime factorization of each number (using a factor tree is helpful!).
1.12
2 x 2 x 3
2.20
2 x 2 x 5
3.36
2 x 2 x 3 x 3
4.50
2 x 5 x 5
5.28
2 x 2 x 7
6.100
2 x 2 x 5 x 5
Section 4: Word Problems
1.
A teacher wants to arrange 24 desks into equal rows. What are all the possible ways she can arrange the desks? (e.g., 1 row of 24)
1x24, 2x12, 3x8, 4x6, 6x4, 8x3, 12x2, 24x1
2.
You are making gift bags and have 18 stickers and 12 lollipops. You want each bag to be identical with nothing left over. What is the greatest number of gift bags you can make?