find a composite number for each of the following numbers to make each a pair of coprime numbers (a) 80 (b) 63

Solve this true false

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1=false
2=false
3=true
4=true
5=true
6=false
7=true 
8=false
9=false ,maybe
10=true
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80 is the answer
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1.f
2.f
3.t
4.t
5.t
6.f
7.t
8.f
9.t
10.t
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80 is answer
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