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MathVine-Pre-Algebra
PrimeorComposite
Name______________________________
Date__________________Period_____
PrimeorComposite.
1) Isthewholenumber170primeorcomposite?
2) Isthewholenumber73primeorcomposite?
3) Isthewholenumber72primeorcomposite?
4) Isthewholenumber46primeorcomposite?
5) Isthewholenumber44primeorcomposite?
6) Isthewholenumber100primeorcomposite?
7) Isthewholenumber178primeorcomposite?
8) Isthewholenumber122primeorcomposite?
9) Isthewholenumber87primeorcomposite?
10) Isthewholenumber36primeorcomposite?
MathVine-Pre-Algebra
PrimeorComposite
Name______________________________
Date__________________Period_____
PrimeorComposite.
1) Isthewholenumber170primeorcomposite?
Answer:Composite
2) Isthewholenumber73primeorcomposite?
Answer:Prime
3) Isthewholenumber72primeorcomposite?
Answer:Composite
4) Isthewholenumber46primeorcomposite?
Answer:Composite
5) Isthewholenumber44primeorcomposite?
Answer:Composite
6) Isthewholenumber100primeorcomposite?
Answer:Composite
7) Isthewholenumber178primeorcomposite?
Answer:Composite
8) Isthewholenumber122primeorcomposite?
Answer:Composite
9) Isthewholenumber87primeorcomposite?
Answer:Composite
10) Isthewholenumber36primeorcomposite?
Answer:Composite
MathVine-Pre-Algebra
PrimeorComposite
Name______________________________
Date__________________Period_____
SolutionSteps
1) Isthewholenumber170primeorcomposite?
170(170iseven)→Yes
Because2isadivisorof170,170isacompositenumber
2) Isthewholenumber73primeorcomposite?
73(73isnoteven)→No
73(7+3 = 10,and→/3=No)NoNo
73 → No
73isnotdivisibleby7
Because73hasnofactorsotherthan1and73,73isaprimenumber
3) Isthewholenumber72primeorcomposite?
72(72iseven)→Yes
Because2isadivisorof72,72isacompositenumber
4) Isthewholenumber46primeorcomposite?
46(46iseven)→Yes
Because2isadivisorof46,46isacompositenumber
5) Isthewholenumber44primeorcomposite?
44(44iseven)→Yes
Because2isadivisorof44,44isacompositenumber
6) Isthewholenumber100primeorcomposite?
100(100iseven)→Yes
Because2isadivisorof100,100isacompositenumber
7) Isthewholenumber178primeorcomposite?
178(178iseven)→Yes
Because2isadivisorof178,178isacompositenumber
8) Isthewholenumber122primeorcomposite?
122(122iseven)→Yes
Because2isadivisorof122,122isacompositenumber
9) Isthewholenumber87primeorcomposite?
87(87isnoteven)→No
87(8+7 = 15,and→/3=Yes)YesYes
Because3isadivisorof87,87isacompositenumber
10) Isthewholenumber36primeorcomposite?
36(36iseven)→Yes
Because2isadivisorof36,36isacompositenumber
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