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Let A = {9, 10 , 11 , 12 , 13}and let f ...

Let `A = {9, 10 , 11 , 12 , 13}`and let `f : A ->N`be defined by f(n) = the highest prime factor of n. Find the range of f.

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`A={9,10,11,12,13}`
`f:A→N` is defined as
f(n)= The highest prime factor of n
Prime factor of `9=3`
Prime factors of `10=2,5`
Prime factors of `11=11`
Prime factors of `12=2,3`
Prime factors of `13=13`
...
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