Factor Pairs
List TWO factor pairs of 45.
(1, 45) (3, 15) (5, 9)
What is one factor of 26?
2 or 13 or 1 and 26
How many hours between 6 am and 1 pm?
7 hours
Is 11 prime or composite?
Prime
List ALL the factor pairs for 20.
(1, 20) (2, 10) (4, 5)
Besides 1 and 16, what is a factor of 16?
2, 4, or 8
How many hours from 1 pm to 8:30 pm
7 hours and 30 minutes
What is a prime number that is also even?
2
List one factor pair for 36.
(1, 36) (2, 18) (3, 12) (4, 9) (6, 6)
What are the factor pairs of 15?
(1, 15)
(3, 5)
What is the elapsed time between 10 am and 2 pm?
4 hours
Look at the factors of 12 below
4 factors
What are the factor pairs of 12?
1, 2, 3, 4, 6, 12
Maria is organizing her sticker collection into equal rows. She has 28 stickers. If she wants each row to have the same number of stickers and no stickers left over, how many stickers could she put in each row?
Use one factor pair of 28.
(1, 28) (2, 14) (4, 7)
1 row of 28 stickers OR 28 rows of 1 sticker
2 rows of 14 stickers OR 14 rows of 2 stickers
4 rows of 7 stickers OR 7 rows of 4 stickers
What is the elapsed time between 9 am and 4 pm?
7 hours
Is 29 prime?
Yes
List all the factor pairs for 25.
1, 5, 25
Jacob has 42 pencils that he wants to share equally among his friends for an art project. If he has 6 friends, how many pencils does each friend get?
7.
If Jill gets to work at 8:00 am and leaves at 5:30 pm, how long did she work for?
9.5 hours
Is 24 a prime number?
No