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Team 2
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Teams
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15
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Determine the prime factorization of 21
3 x 7
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15
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is 45 prime or composite?
composite
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True or false: All even numbers are composite
True
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15
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Draw an array model to prove this number is prime or composite: 13
prime: 1 x 13
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15
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How many factors does a prime number have?
2
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15
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Which are prime and which are composite? 17, 7, 24
Composite: 24Â Â Â prime: 7, 17
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True or false: all odd numbers are prime
false
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15
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Draw an array model to prove this number is prime or composite: 9
Composite: 1 x 9Â Â 3 x 3
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15
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What is the prime factorization of 28?
2 x 2 x 7
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Which are prime and which are composite? 18, 22, 31
composite: 18, 22Â Â Â prime: 31
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heart
Other team wins 25 points!
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shark
Other team loses 15 points!
Okay!
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fairy
Take points!
5
10
15
20
25
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thief
Give points!
5
10
15
20
25
15
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What is the prime factorization of 72?
2 x 2 x 2 x 3 x 3
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monster
Reset all scores!
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rocket
Go to first place!
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shark
Other team loses 20 points!
Okay!
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thief
Give points!
5
10
15
20
25
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trap
No points!
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rocket
Go to first place!
Okay!
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fairy
Take points!
5
10
15
20
25
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banana
Go to last place!
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How many factors does a composite number have?
More than 2
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15
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Is 19 prime or composite?
prime
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