Which of the following number is a prime number?
6, 21, 14, 17, 39
17
200
What are all of the factors of 18?
1,2,3,6,9,18
200
What are the first six multiples of 7?
7,14,21,28,35,42
200
What is the GCF of 40 and 24?
8
200
What happens when you add an even and an odd number?
You get an odd number.
200
What is a prime number?
A number with only two factors - 1 and itself.
300
What are all of the factors of 36?
1,2,3,4,6,9,12,18,36
300
Which of these number is a multiple of 8?
12, 36, 70, 28, 96
What is 96.
300
What is the LCM of 12 and 18?
What is 36?
300
What happens when you multiply an even number by an odd number?
You get an even number!
300
What is the prime decomposition of 63?
3 x 3 x 7
400
Why is there no such thing as a Least Common Factor?
Because 1 is the last common factor of every number!
400
Why is there no such thing as a Greatest Common Multiple?
Because multiples never end!
400
Shanille eats pizza once every 9 days. Kristen eats pizza once every 12 days. If they both ate pizza today, how many days will pass until they both eat pizza again on the same day?
36 days
400
Why is an even times an even always even?
Drawing needed.
400
What is the prime factorization of 96?
2x2x2x2x2x3
500
What are all of the factors of 96?
1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
500
Guess my mystery number!
One of its factors is 9.
It is more than 40 and less than 70.
It is a multiple of 2 and 3.
It has an one odd digit and one even digit.
54
500
William has 42 oranges and 18 peaches to share with his friends. If he wants to make fruit bags for his friends, what is the greatest number of equal fruit bags he can make to share with his friends?
Bonus: How many oranges and peaches are in each bag?
6 (7 oranges and 3 peaches in each bag)
500
Without calculating explain whether the number on the board will be odd or even and explain why.